quantified.uncertainty/squiggle
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Merge pull request #141 from QURIresearch/staging

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Quinn 2022-04-10 14:05:26 -04:00 committed by GitHub
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6
.github/workflows/ci.yaml vendored
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@ -21,17 +21,17 @@ jobs:
name: Check if the changes are about squiggle-lang src files
uses: fkirc/skip-duplicate-actions@master
with:
paths: '["packages/squiggle-lang/*"]'
paths: '["packages/squiggle-lang/**"]'
- id: skip_components_check
name: Check if the changes are about components src files
uses: fkirc/skip-duplicate-actions@master
with:
paths: '["packages/components/*"]'
paths: '["packages/components/**"]'
- id: skip_website_check
name: Check if the changes are about website src files
uses: fkirc/skip-duplicate-actions@master
with:
paths: '["packages/website/*"]'
paths: '["packages/website/**"]'
lang-build-test:
name: Language build and test

2
.gitignore vendored
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@ -4,3 +4,5 @@ yarn-error.log
.merlin
.parcel-cache
.DS_Store
**/.sync.ffs_db
.direnv

9
CONTRIBUTING.md
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@ -38,6 +38,15 @@ Being a monorepo, where packages are connected by dependency, it's important to
We aspire for `ci.yaml` and `README.md`s to be in one-to-one correspondence.
## If you're on NixOS
You'll need to run a command like this in order to get `yarn build` to run, especially in `packages/squiggle-lang`.
```sh
patchelf --set-interpreter $(patchelf --print-interpreter $(which mkdir)) ./node_modules/gentype/gentype.exe
```
See [here](https://github.com/NixOS/nixpkgs/issues/107375)
# Pull request protocol
Please work against `staging` branch. **Do not** work against `master`. Please do not merge without approval from some subset of Quinn, Sam, and Ozzie; they will be auto-pinged.

1
README.md
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@ -1,4 +1,5 @@
# Squiggle
![Packages check](https://github.com/QURIresearch/squiggle/actions/workflows/ci.yaml/badge.svg)
This is an experiment DSL/language for making probabilistic estimates. The full story can be found [here](https://www.lesswrong.com/s/rDe8QE5NvXcZYzgZ3).

1
flake.nix
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@ -44,6 +44,7 @@
yarn2nix
nodePackages.npm
nodejs
patchelf
(pkgs.vscode-with-extensions.override {
vscode = pkgs.vscodium;
vscodeExtensions = pkgs.vscode-utils.extensionsFromVscodeMarketplace [

2
package.json
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@ -8,7 +8,7 @@
"packages/*"
],
"resolutions": {
"@types/react": "17.0.39"
"@types/react": "^17.0.43"
},
"packageManager": "yarn@1.22.17"
}

2
packages/components/.storybook/main.js
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@ -4,7 +4,7 @@ const custom = require('../webpack.config.js');
module.exports = {
webpackFinal: async (config) => {
config.resolve.alias = custom.resolve.alias;
return { ...config, module: { ...config.module, rules: config.module.rules.concat(custom.module.rules) } };
return { ...config, module: { ...config.module, rules: config.module.rules.concat(custom.module.rules.filter(x => x.loader === "ts-loader")) } };
},
"stories": [
"../src/**/*.stories.mdx",

4
packages/components/README.md
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@ -1,14 +1,18 @@
# Squiggle Components
This package contains all the components for squiggle. These can be used either as a library or hosted as a [storybook](https://storybook.js.org/).
# Build for development
We assume that you had run `yarn` at monorepo level, installing dependencies.
You need to _prepare_ by building and bundling `squiggle-lang`
```sh
cd ../squiggle-lang
yarn build
```
If you've otherwise done this recently you can skip those.
Run a development server

12
packages/components/package.json
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@ -1,6 +1,6 @@
{
"name": "@quri/squiggle-components",
"version": "0.1.6",
"version": "0.1.8",
"dependencies": {
"@quri/squiggle-lang": "0.2.2",
"@testing-library/jest-dom": "^5.16.4",
@ -11,12 +11,15 @@
"@types/node": "^17.0.23",
"@types/react": "^18.0.0",
"@types/react-dom": "^18.0.0",
"antd": "^4.19.3",
"cross-env": "^7.0.3",
"lodash": "^4.17.21",
"react": "^18.0.0",
"react-dom": "^18.0.0",
"react-scripts": "5.0.0",
"react-vega": "^7.5.0",
"react-ace": "9.5.0",
"styled-components": "^5.3.5",
"tsconfig-paths-webpack-plugin": "^3.5.2",
"typescript": "^4.6.3",
"vega": "^5.22.1",
@ -27,7 +30,7 @@
},
"scripts": {
"start": "cross-env REACT_APP_FAST_REFRESH=false && start-storybook -p 6006 -s public",
"build": "build-storybook -s public",
"build": "tsc -b && build-storybook -s public",
"bundle": "webpack",
"all": "yarn bundle && yarn build"
},
@ -60,6 +63,9 @@
]
},
"devDependencies": {
"@types/styled-components": "^5.1.24",
"css-loader": "^6.7.1",
"style-loader": "^3.3.1",
"@babel/plugin-proposal-private-property-in-object": "^7.16.7",
"@storybook/addon-actions": "^6.4.20",
"@storybook/addon-essentials": "^6.4.20",
@ -69,7 +75,7 @@
"@storybook/node-logger": "^6.4.20",
"@storybook/preset-create-react-app": "^4.1.0",
"@storybook/react": "^6.4.20",
"@types/webpack": "^5.28.0",
"@types/webpack": "^4.41.32",
"prettier": "^2.6.2",
"react-codejar": "^1.1.2",
"ts-loader": "^9.2.8",

45
packages/components/src/CodeEditor.tsx Normal file
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@ -0,0 +1,45 @@
import _ from "lodash";
import React, { FC } from "react";
import AceEditor from "react-ace";
import "ace-builds/src-noconflict/mode-golang";
import "ace-builds/src-noconflict/theme-github";
interface CodeEditorProps {
value: string;
onChange: (value: string) => void;
oneLine?: boolean;
width?: number;
}
export let CodeEditor: FC<CodeEditorProps> = ({
value,
onChange,
oneLine = false,
}: CodeEditorProps) => {
let lineCount = value.split("\n").length;
let id = _.uniqueId();
return (
<AceEditor
value={value}
mode="golang"
theme="github"
width={"100%"}
minLines={oneLine ? lineCount : 15}
maxLines={oneLine ? lineCount : 15}
showGutter={false}
highlightActiveLine={false}
showPrintMargin={false}
onChange={onChange}
name={id}
editorProps={{
$blockScrolling: true,
}}
setOptions={{
enableBasicAutocompletion: false,
enableLiveAutocompletion: false,
}}
/>
);
};
export default CodeEditor;

98
packages/components/src/NumberShower.tsx Normal file
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@ -0,0 +1,98 @@
import * as React from "react";
import _ from "lodash";
const orderOfMagnitudeNum = (n: number) => {
return Math.pow(10, n);
};
// 105 -> 3
const orderOfMagnitude = (n: number) => {
return Math.floor(Math.log(n) / Math.LN10 + 0.000000001);
};
function withXSigFigs(number: number, sigFigs: number) {
const withPrecision = number.toPrecision(sigFigs);
const formatted = Number(withPrecision);
return `${formatted}`;
}
class NumberShowerBuilder {
number: number;
precision: number;
constructor(number: number, precision = 2) {
this.number = number;
this.precision = precision;
}
convert() {
const number = Math.abs(this.number);
const response = this.evaluate(number);
if (this.number < 0) {
response.value = "-" + response.value;
}
return response;
}
metricSystem(number: number, order: number) {
const newNumber = number / orderOfMagnitudeNum(order);
const precision = this.precision;
return `${withXSigFigs(newNumber, precision)}`;
}
evaluate(number: number) {
if (number === 0) {
return { value: this.metricSystem(0, 0) };
}
const order = orderOfMagnitude(number);
if (order < -2) {
return { value: this.metricSystem(number, order), power: order };
} else if (order < 4) {
return { value: this.metricSystem(number, 0) };
} else if (order < 6) {
return { value: this.metricSystem(number, 3), symbol: "K" };
} else if (order < 9) {
return { value: this.metricSystem(number, 6), symbol: "M" };
} else if (order < 12) {
return { value: this.metricSystem(number, 9), symbol: "B" };
} else if (order < 15) {
return { value: this.metricSystem(number, 12), symbol: "T" };
} else {
return { value: this.metricSystem(number, order), power: order };
}
}
}
export function numberShow(number: number, precision = 2) {
const ns = new NumberShowerBuilder(number, precision);
return ns.convert();
}
export interface NumberShowerProps {
number: number;
precision?: number
}
export let NumberShower: React.FC<NumberShowerProps> = ({
number,
precision = 2
}: NumberShowerProps) => {
let numberWithPresentation = numberShow(number, precision);
return (
<span>
{numberWithPresentation.value}
{numberWithPresentation.symbol}
{numberWithPresentation.power ? (
<span>
{"\u00b710"}
<span style={{ fontSize: "0.6em", verticalAlign: "super" }}>
{numberWithPresentation.power}
</span>
</span>
) : (
<></>
)}
</span>
);
}

205
packages/components/src/SquiggleChart.tsx
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@ -11,6 +11,8 @@ import type {
import { createClassFromSpec } from "react-vega";
import * as chartSpecification from "./spec-distributions.json";
import * as percentilesSpec from "./spec-percentiles.json";
import { NumberShower } from "./NumberShower";
import styled from "styled-components";
let SquiggleVegaChart = createClassFromSpec({
spec: chartSpecification as Spec,
@ -22,7 +24,7 @@ let SquigglePercentilesChart = createClassFromSpec({
export interface SquiggleChartProps {
/** The input string for squiggle */
squiggleString: string;
squiggleString?: string;
/** If the output requires monte carlo sampling, the amount of samples */
sampleCount?: number;
@ -40,24 +42,58 @@ export interface SquiggleChartProps {
environment?: exportEnv;
/** When the environment changes */
onEnvChange?(env: exportEnv): void;
/** CSS width of the element */
width?: number;
height?: number;
}
export const SquiggleChart: React.FC<SquiggleChartProps> = (props) => {
let samplingInputs: SamplingInputs = {
sampleCount: props.sampleCount,
outputXYPoints: props.outputXYPoints,
kernelWidth: props.kernelWidth,
pointDistLength: props.pointDistLength,
const Error = styled.div`
border: 1px solid #792e2e;
background: #eee2e2;
padding: 0.4em 0.8em;
`;
const ShowError: React.FC<{ heading: string; children: React.ReactNode }> = ({
heading = "Error",
children,
}) => {
return (
<Error>
<h3>{heading}</h3>
{children}
</Error>
);
};
let result = run(props.squiggleString, samplingInputs, props.environment);
export const SquiggleChart: React.FC<SquiggleChartProps> = ({
squiggleString = "",
sampleCount = 1000,
outputXYPoints = 1000,
kernelWidth,
pointDistLength = 1000,
diagramStart = 0,
diagramStop = 10,
diagramCount = 20,
environment = [],
onEnvChange = () => {},
width = 500,
height = 60,
}: SquiggleChartProps) => {
let samplingInputs: SamplingInputs = {
sampleCount: sampleCount,
outputXYPoints: outputXYPoints,
kernelWidth: kernelWidth,
pointDistLength: pointDistLength,
};
let result = run(squiggleString, samplingInputs, environment);
if (result.tag === "Ok") {
let environment = result.value.environment;
let exports = result.value.exports;
if (props.onEnvChange) props.onEnvChange(environment);
onEnvChange(environment);
let chartResults = exports.map((chartResult: exportDistribution) => {
if (chartResult["NAME"] === "Float") {
return <MakeNumberShower precision={3} number={chartResult["VAL"]} />;
return <NumberShower precision={3} number={chartResult["VAL"]} />;
} else if (chartResult["NAME"] === "DistPlus") {
let shape = chartResult.VAL.pointSetDist;
if (shape.tag === "Continuous") {
@ -74,7 +110,14 @@ export const SquiggleChart: React.FC<SquiggleChartProps> = (props) => {
y: y,
}));
return <SquiggleVegaChart data={{ con: values }} />;
return (
<SquiggleVegaChart
width={width}
height={height}
data={{ con: values }}
actions={false}
/>
);
} else if (shape.tag === "Discrete") {
let xyShape = shape.value.xyShape;
let totalY = xyShape.ys.reduce((a, b) => a + b);
@ -89,7 +132,7 @@ export const SquiggleChart: React.FC<SquiggleChartProps> = (props) => {
y: y,
}));
return <SquiggleVegaChart data={{ dis: values }} />;
return <SquiggleVegaChart data={{ dis: values }} actions={false} />;
} else if (shape.tag === "Mixed") {
let discreteShape = shape.value.discrete.xyShape;
let totalDiscrete = discreteShape.ys.reduce((a, b) => a + b);
@ -123,10 +166,10 @@ export const SquiggleChart: React.FC<SquiggleChartProps> = (props) => {
let total = 0;
let cdf = sortedPoints.map((point: labeledPoint) => {
if (point.type == "discrete") {
if (point.type === "discrete") {
total += point.y;
return total;
} else if (point.type == "continuous") {
} else if (point.type === "continuous") {
total += (point.y / totalY) * totalContinuous;
return total;
}
@ -147,28 +190,29 @@ export const SquiggleChart: React.FC<SquiggleChartProps> = (props) => {
})
);
let continuousValues = cdfLabeledPoint.filter(
(x) => x.type == "continuous"
(x) => x.type === "continuous"
);
let discreteValues = cdfLabeledPoint.filter(
(x) => x.type == "discrete"
(x) => x.type === "discrete"
);
return (
<SquiggleVegaChart
data={{ con: continuousValues, dis: discreteValues }}
actions={false}
/>
);
}
} else if (chartResult.NAME === "Function") {
// We are looking at a function. In this case, we draw a Percentiles chart
let start = props.diagramStart ? props.diagramStart : 0;
let stop = props.diagramStop ? props.diagramStop : 10;
let count = props.diagramCount ? props.diagramCount : 100;
let start = diagramStart;
let stop = diagramStop;
let count = diagramCount;
let step = (stop - start) / count;
let data = _.range(start, stop, step).map((x) => {
if (chartResult.NAME == "Function") {
if (chartResult.NAME === "Function") {
let result = chartResult.VAL(x);
if (result.tag == "Ok") {
if (result.tag === "Ok") {
let percentileArray = [
0.01, 0.05, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 0.95,
0.99,
@ -195,19 +239,28 @@ export const SquiggleChart: React.FC<SquiggleChartProps> = (props) => {
return null;
}
});
return <SquigglePercentilesChart data={{ facet: data.filter(x => x !== null) }} />;
return (
<SquigglePercentilesChart
data={{ facet: data.filter((x) => x !== null) }}
actions={false}
/>
);
}
});
return <>{chartResults}</>;
} else if (result.tag == "Error") {
} else if (result.tag === "Error") {
// At this point, we came across an error. What was our error?
return <p>{"Error parsing Squiggle: " + result.value}</p>;
return (
<ShowError heading={"Parse Error"}>
{result.value}
</ShowError>
);
}
return <p>{"Invalid Response"}</p>;
};
function getPercentiles(percentiles: number[], t: DistPlus) {
if (t.pointSetDist.tag == "Discrete") {
if (t.pointSetDist.tag === "Discrete") {
let total = 0;
let maxX = _.max(t.pointSetDist.value.xyShape.xs);
let bounds = percentiles.map((_) => maxX);
@ -217,14 +270,14 @@ function getPercentiles(percentiles: number[], t: DistPlus) {
(x, y) => {
total += y;
percentiles.forEach((v, i) => {
if (total > v && bounds[i] == maxX) {
if (total > v && bounds[i] === maxX) {
bounds[i] = x;
}
});
}
);
return bounds;
} else if (t.pointSetDist.tag == "Continuous") {
} else if (t.pointSetDist.tag === "Continuous") {
let total = 0;
let maxX = _.max(t.pointSetDist.value.xyShape.xs);
let totalY = _.sum(t.pointSetDist.value.xyShape.ys);
@ -235,14 +288,14 @@ function getPercentiles(percentiles: number[], t: DistPlus) {
(x, y) => {
total += y / totalY;
percentiles.forEach((v, i) => {
if (total > v && bounds[i] == maxX) {
if (total > v && bounds[i] === maxX) {
bounds[i] = x;
}
});
}
);
return bounds;
} else if (t.pointSetDist.tag == "Mixed") {
} else if (t.pointSetDist.tag === "Mixed") {
let discreteShape = t.pointSetDist.value.discrete.xyShape;
let totalDiscrete = discreteShape.ys.reduce((a, b) => a + b);
@ -276,13 +329,13 @@ function getPercentiles(percentiles: number[], t: DistPlus) {
let maxX = _.max(sortedPoints.map((x) => x.x));
let bounds = percentiles.map((_) => maxX);
sortedPoints.map((point: labeledPoint) => {
if (point.type == "discrete") {
if (point.type === "discrete") {
total += point.y;
} else if (point.type == "continuous") {
} else if (point.type === "continuous") {
total += (point.y / totalY) * totalContinuous;
}
percentiles.forEach((v, i) => {
if (total > v && bounds[i] == maxX) {
if (total > v && bounds[i] === maxX) {
bounds[i] = total;
}
});
@ -291,91 +344,3 @@ function getPercentiles(percentiles: number[], t: DistPlus) {
return bounds;
}
}
function MakeNumberShower(props: { number: number; precision: number }) {
let numberWithPresentation = numberShow(props.number, props.precision);
return (
<span>
{numberWithPresentation.value}
{numberWithPresentation.symbol}
{numberWithPresentation.power ? (
<span>
{"\u00b710"}
<span style={{ fontSize: "0.6em", verticalAlign: "super" }}>
{numberWithPresentation.power}
</span>
</span>
) : (
<></>
)}
</span>
);
}
const orderOfMagnitudeNum = (n: number) => {
return Math.pow(10, n);
};
// 105 -> 3
const orderOfMagnitude = (n: number) => {
return Math.floor(Math.log(n) / Math.LN10 + 0.000000001);
};
function withXSigFigs(number: number, sigFigs: number) {
const withPrecision = number.toPrecision(sigFigs);
const formatted = Number(withPrecision);
return `${formatted}`;
}
class NumberShower {
number: number;
precision: number;
constructor(number: number, precision = 2) {
this.number = number;
this.precision = precision;
}
convert() {
const number = Math.abs(this.number);
const response = this.evaluate(number);
if (this.number < 0) {
response.value = "-" + response.value;
}
return response;
}
metricSystem(number: number, order: number) {
const newNumber = number / orderOfMagnitudeNum(order);
const precision = this.precision;
return `${withXSigFigs(newNumber, precision)}`;
}
evaluate(number: number) {
if (number === 0) {
return { value: this.metricSystem(0, 0) };
}
const order = orderOfMagnitude(number);
if (order < -2) {
return { value: this.metricSystem(number, order), power: order };
} else if (order < 4) {
return { value: this.metricSystem(number, 0) };
} else if (order < 6) {
return { value: this.metricSystem(number, 3), symbol: "K" };
} else if (order < 9) {
return { value: this.metricSystem(number, 6), symbol: "M" };
} else if (order < 12) {
return { value: this.metricSystem(number, 9), symbol: "B" };
} else if (order < 15) {
return { value: this.metricSystem(number, 12), symbol: "T" };
} else {
return { value: this.metricSystem(number, order), power: order };
}
}
}
export function numberShow(number: number, precision = 2) {
const ns = new NumberShower(number, precision);
return ns.convert();
}

95
packages/components/src/SquiggleEditor.tsx
View File

@ -1,8 +1,9 @@
import * as React from "react";
import * as ReactDOM from "react-dom";
import { SquiggleChart } from "./SquiggleChart";
import { ReactCodeJar } from "react-codejar";
import { CodeEditor } from "./CodeEditor";
import type { exportEnv } from "@quri/squiggle-lang";
import styled from 'styled-components'
export interface SquiggleEditorProps {
/** The input string for squiggle */
@ -23,71 +24,57 @@ export interface SquiggleEditorProps {
environment?: exportEnv;
/** when the environment changes. Used again for notebook magic*/
onEnvChange?(env: exportEnv): void;
/** The width of the element */
width: number;
}
const highlight = (editor: HTMLInputElement) => {
let code = editor.textContent;
code = code.replace(/\((\w+?)(\b)/g, '(<font color="#8a2be2">$1</font>$2');
editor.innerHTML = code;
};
const Input = styled.div`
border: 1px solid #ddd;
padding: 0.3em 0.3em;
margin-bottom: 1em;
`;
interface SquiggleEditorState {
expression: string;
env: exportEnv;
}
export class SquiggleEditor extends React.Component<
SquiggleEditorProps,
SquiggleEditorState
> {
constructor(props: SquiggleEditorProps) {
super(props);
let code = props.initialSquiggleString ? props.initialSquiggleString : "";
this.state = { expression: code, env: props.environment };
}
render() {
let { expression, env } = this.state;
let props = this.props;
export let SquiggleEditor: React.FC<SquiggleEditorProps> = ({
initialSquiggleString = "",
width = 500,
sampleCount,
outputXYPoints,
kernelWidth,
pointDistLength,
diagramStart,
diagramStop,
diagramCount,
onEnvChange,
environment,
}: SquiggleEditorProps) => {
let [expression, setExpression] = React.useState(initialSquiggleString);
return (
<div>
<ReactCodeJar
code={expression}
onUpdate={(e) => {
this.setState({ expression: e });
}}
style={{
borderRadius: "6px",
width: "530px",
border: "1px solid grey",
fontFamily: "'Source Code Pro', monospace",
fontSize: "14px",
fontWeight: "400",
letterSpacing: "normal",
lineHeight: "20px",
padding: "10px",
tabSize: "4",
}}
highlight={highlight}
lineNumbers={false}
<Input>
<CodeEditor
value={expression}
onChange={setExpression}
oneLine={true}
/>
</Input>
<SquiggleChart
width={width}
squiggleString={expression}
sampleCount={props.sampleCount}
outputXYPoints={props.outputXYPoints}
kernelWidth={props.kernelWidth}
pointDistLength={props.pointDistLength}
diagramStart={props.diagramStart}
diagramStop={props.diagramStop}
diagramCount={props.diagramCount}
environment={env}
onEnvChange={props.onEnvChange}
sampleCount={sampleCount}
outputXYPoints={outputXYPoints}
kernelWidth={kernelWidth}
pointDistLength={pointDistLength}
diagramStart={diagramStart}
diagramStop={diagramStop}
diagramCount={diagramCount}
environment={environment}
onEnvChange={onEnvChange}
/>
</div>
);
}
}
};
export function renderSquiggleEditor(props: SquiggleEditorProps) {
export function renderSquiggleEditorToDom(props: SquiggleEditorProps) {
let parent = document.createElement("div");
ReactDOM.render(
<SquiggleEditor

131
packages/components/src/SquigglePlayground.tsx Normal file
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@ -0,0 +1,131 @@
import _ from "lodash";
import React, { FC, useState } from "react";
import ReactDOM from "react-dom";
import { SquiggleChart } from "./SquiggleChart";
import CodeEditor from "./CodeEditor";
import { Form, Input, Card, Row, Col } from "antd";
import "antd/dist/antd.css";
interface FieldFloatProps {
label: string;
className?: string;
value: number;
onChange: (value: number) => void;
}
function FieldFloat(Props: FieldFloatProps) {
let [contents, setContents] = useState(Props.value + "");
return (
<Form.Item label={Props.label}>
<Input
value={contents}
className={Props.className ? Props.className : ""}
onChange={(e) => {
setContents(e.target.value);
let result = parseFloat(contents);
if (_.isFinite(result)) {
Props.onChange(result);
}
}}
/>
</Form.Item>
);
}
interface Props {
initialSquiggleString: string;
}
let SquigglePlayground: FC<Props> = (props) => {
let [squiggleString, setSquiggleString] = useState(
props.initialSquiggleString
);
let [sampleCount, setSampleCount] = useState(1000);
let [outputXYPoints, setOutputXYPoints] = useState(1000);
let [pointDistLength, setPointDistLength] = useState(1000);
let [diagramStart, setDiagramStart] = useState(0);
let [diagramStop, setDiagramStop] = useState(10);
let [diagramCount, setDiagramCount] = useState(20);
var demoDist = (
<SquiggleChart
squiggleString={squiggleString}
sampleCount={sampleCount}
outputXYPoints={outputXYPoints}
diagramStart={diagramStart}
diagramStop={diagramStop}
diagramCount={diagramCount}
pointDistLength={pointDistLength}
height={150}
/>
);
return (
<Row>
<Col span={12}>
<Card title="Distribution Form">
<Form>
<Row gutter={16}>
<Col span={24}>
<CodeEditor
value={squiggleString}
onChange={setSquiggleString}
oneLine={false}
/>
</Col>
</Row>
<Row gutter={16}>
<Col span={12}>
<FieldFloat
value={sampleCount}
label="Sample Count"
onChange={setSampleCount}
/>
</Col>
<Col span={12}>
<FieldFloat
value={outputXYPoints}
onChange={setOutputXYPoints}
label="Output XY-points"
/>
</Col>
<Col span={12}>
<FieldFloat
value={pointDistLength}
onChange={setPointDistLength}
label="Downsample To"
/>
</Col>
<Col span={12}>
<FieldFloat
value={diagramStart}
onChange={setDiagramStart}
label="Diagram Start"
/>
</Col>
<Col span={12}>
<FieldFloat
value={diagramStop}
onChange={setDiagramStop}
label="Diagram Stop"
/>
</Col>
<Col span={12}>
<FieldFloat
value={diagramCount}
onChange={setDiagramCount}
label="Diagram Count"
/>
</Col>
</Row>
</Form>
</Card>
</Col>
<Col span={12}>{demoDist}</Col>
</Row>
);
};
export default SquigglePlayground;
export function renderSquigglePlaygroundToDom(props: Props) {
let parent = document.createElement("div");
ReactDOM.render(<SquigglePlayground {...props} />, parent);
return parent;
}

6
packages/components/src/index.ts
View File

@ -1,2 +1,6 @@
export { SquiggleChart } from "./SquiggleChart";
export { SquiggleEditor, renderSquiggleEditor } from "./SquiggleEditor";
export { SquiggleEditor, renderSquiggleEditorToDom } from "./SquiggleEditor";
import SquigglePlayground, {
renderSquigglePlaygroundToDom,
} from "./SquigglePlayground";
export { SquigglePlayground, renderSquigglePlaygroundToDom };

160
packages/components/src/spec-distributions.json
View File

@ -1,123 +1,181 @@
{
"$schema": "https://vega.github.io/schema/vega/v5.json",
"description": "A basic area chart example.",
"description": "A basic area chart example",
"width": 500,
"height": 200,
"height": 100,
"padding": 5,
"data": [{ "name": "con" }, { "name": "dis" }],
"signals": [
"data": [
{
"name": "mousex",
"description": "x position of mouse",
"update": "0",
"on": [{ "events": "mousemove", "update": "1-x()/width" }]
"name": "con"
},
{
"name": "dis"
}
],
"signals": [
{
"name": "xscale",
"description": "The transform of the x scale",
"value": 1.0,
"value": false,
"bind": {
"input": "range",
"min": 0.1,
"max": 1
"input": "checkbox",
"name": "log x scale"
}
},
{
"name": "yscale",
"description": "The transform of the y scale",
"value": 1.0,
"value": false,
"bind": {
"input": "range",
"min": 0.1,
"max": 1
"input": "checkbox",
"name": "log y scale"
}
}
],
"scales": [
{
"name": "xscale",
"type": "pow",
"exponent": { "signal": "xscale" },
"exponent": {
"signal": "xscale ? 0.1 : 1"
},
"range": "width",
"zero": false,
"nice": false,
"domain": {
"fields": [
{ "data": "con", "field": "x" },
{ "data": "dis", "field": "x" }
{
"data": "con",
"field": "x"
},
{
"data": "dis",
"field": "x"
}
]
}
},
{
"name": "yscale",
"type": "pow",
"exponent": { "signal": "yscale" },
"exponent": {
"signal": "yscale ? 0.1 : 1"
},
"range": "height",
"nice": true,
"zero": true,
"domain": {
"fields": [
{ "data": "con", "field": "y" },
{ "data": "dis", "field": "y" }
{
"data": "con",
"field": "y"
},
{
"data": "dis",
"field": "y"
}
]
}
}
],
"axes": [
{ "orient": "bottom", "scale": "xscale", "tickCount": 20 },
{ "orient": "left", "scale": "yscale" }
{
"orient": "bottom",
"scale": "xscale",
"labelColor": "#666",
"tickColor": "#ddd",
"format": "~s",
"tickCount": 20
}
],
"marks": [
{
"type": "area",
"from": { "data": "con" },
"from": {
"data": "con"
},
"encode": {
"enter": {
"tooltip": { "signal": "datum.cdf" }
},
"update": {
"x": { "scale": "xscale", "field": "x" },
"y": { "scale": "yscale", "field": "y" },
"y2": { "scale": "yscale", "value": 0 },
"fill": {
"signal": "{gradient: 'linear', x1: 1, y1: 1, x2: 0, y2: 1, stops: [ {offset: 0.0, color: '#11ac8f'}, {offset: clamp(mousex, 0, 1), color: '#11ac8f'}, {offset: clamp(mousex, 0, 1), color: '#1b6fac'}, {offset: 1.0, color: '#1b6fac'} ] }",
"color": "#000"
"x": {
"scale": "xscale",
"field": "x"
},
"interpolate": { "value": "monotone" },
"fillOpacity": { "value": 1 }
"y": {
"scale": "yscale",
"field": "y"
},
"y2": {
"scale": "yscale",
"value": 0
},
"fill": {
"signal": "{gradient: 'linear', x1: 1, y1: 1, x2: 0, y2: 1, stops: [ {offset: 0.0, color: '#4C78A8'}] }"
},
"interpolate": {
"value": "monotone"
},
"fillOpacity": {
"value": 1
}
}
}
},
{
"type": "rect",
"from": { "data": "dis" },
"from": {
"data": "dis"
},
"encode": {
"enter": {
"y2": { "scale": "yscale", "value": 0 },
"width": { "value": 1 }
"y2": {
"scale": "yscale",
"value": 0
},
"width": {
"value": 1
}
},
"update": {
"x": { "scale": "xscale", "field": "x" },
"y": { "scale": "yscale", "field": "y" }
"x": {
"scale": "xscale",
"field": "x"
},
"y": {
"scale": "yscale",
"field": "y"
}
}
}
},
{
"type": "symbol",
"from": { "data": "dis" },
"from": {
"data": "dis"
},
"encode": {
"enter": {
"shape": { "value": "circle" },
"width": { "value": 5 },
"tooltip": { "signal": "datum.y" }
"shape": {
"value": "circle"
},
"width": {
"value": 5
},
"tooltip": {
"signal": "datum.y"
}
},
"update": {
"x": { "scale": "xscale", "field": "x" },
"y": { "scale": "yscale", "field": "y" }
"x": {
"scale": "xscale",
"field": "x"
},
"y": {
"scale": "yscale",
"field": "y"
},
"fill": {
"value": "#1e4577"
}
}
}
}

277
packages/components/src/spec-percentiles.json
View File

@ -7,7 +7,12 @@
{
"name": "facet",
"values": [],
"format": { "type": "json", "parse": { "timestamp": "date" } }
"format": {
"type": "json",
"parse": {
"timestamp": "date"
}
}
},
{
"name": "table",
@ -70,7 +75,10 @@
"name": "xscale",
"type": "linear",
"nice": true,
"domain": { "data": "facet", "field": "x" },
"domain": {
"data": "facet",
"field": "x"
},
"range": "width"
},
{
@ -79,7 +87,10 @@
"range": "height",
"nice": true,
"zero": true,
"domain": { "data": "facet", "field": "p99" }
"domain": {
"data": "facet",
"field": "p99"
}
}
],
"axes": [
@ -89,8 +100,20 @@
"grid": false,
"tickSize": 2,
"encode": {
"grid": { "enter": { "stroke": { "value": "#ccc" } } },
"ticks": { "enter": { "stroke": { "value": "#ccc" } } }
"grid": {
"enter": {
"stroke": {
"value": "#ccc"
}
}
},
"ticks": {
"enter": {
"stroke": {
"value": "#ccc"
}
}
}
}
},
{
@ -100,107 +123,249 @@
"domain": false,
"tickSize": 2,
"encode": {
"grid": { "enter": { "stroke": { "value": "#ccc" } } },
"ticks": { "enter": { "stroke": { "value": "#ccc" } } }
"grid": {
"enter": {
"stroke": {
"value": "#ccc"
}
}
},
"ticks": {
"enter": {
"stroke": {
"value": "#ccc"
}
}
}
}
}
],
"marks": [
{
"type": "area",
"from": { "data": "table" },
"from": {
"data": "table"
},
"encode": {
"enter": { "fill": { "value": "#4C78A8" } },
"enter": {
"fill": {
"value": "#4C78A8"
}
},
"update": {
"interpolate": { "value": "monotone" },
"x": { "scale": "xscale", "field": "x" },
"y": { "scale": "yscale", "field": "p1" },
"y2": { "scale": "yscale", "field": "p99" },
"opacity": { "value": 0.05 }
"interpolate": {
"value": "monotone"
},
"x": {
"scale": "xscale",
"field": "x"
},
"y": {
"scale": "yscale",
"field": "p1"
},
"y2": {
"scale": "yscale",
"field": "p99"
},
"opacity": {
"value": 0.05
}
}
}
},
{
"type": "area",
"from": { "data": "table" },
"from": {
"data": "table"
},
"encode": {
"enter": { "fill": { "value": "#4C78A8" } },
"enter": {
"fill": {
"value": "#4C78A8"
}
},
"update": {
"interpolate": { "value": "monotone" },
"x": { "scale": "xscale", "field": "x" },
"y": { "scale": "yscale", "field": "p5" },
"y2": { "scale": "yscale", "field": "p95" },
"opacity": { "value": 0.1 }
"interpolate": {
"value": "monotone"
},
"x": {
"scale": "xscale",
"field": "x"
},
"y": {
"scale": "yscale",
"field": "p5"
},
"y2": {
"scale": "yscale",
"field": "p95"
},
"opacity": {
"value": 0.1
}
}
}
},
{
"type": "area",
"from": { "data": "table" },
"from": {
"data": "table"
},
"encode": {
"enter": { "fill": { "value": "#4C78A8" } },
"enter": {
"fill": {
"value": "#4C78A8"
}
},
"update": {
"interpolate": { "value": "monotone" },
"x": { "scale": "xscale", "field": "x" },
"y": { "scale": "yscale", "field": "p10" },
"y2": { "scale": "yscale", "field": "p90" },
"opacity": { "value": 0.15 }
"interpolate": {
"value": "monotone"
},
"x": {
"scale": "xscale",
"field": "x"
},
"y": {
"scale": "yscale",
"field": "p10"
},
"y2": {
"scale": "yscale",
"field": "p90"
},
"opacity": {
"value": 0.15
}
}
}
},
{
"type": "area",
"from": { "data": "table" },
"from": {
"data": "table"
},
"encode": {
"enter": { "fill": { "value": "#4C78A8" } },
"enter": {
"fill": {
"value": "#4C78A8"
}
},
"update": {
"interpolate": { "value": "monotone" },
"x": { "scale": "xscale", "field": "x" },
"y": { "scale": "yscale", "field": "p20" },
"y2": { "scale": "yscale", "field": "p80" },
"opacity": { "value": 0.2 }
"interpolate": {
"value": "monotone"
},
"x": {
"scale": "xscale",
"field": "x"
},
"y": {
"scale": "yscale",
"field": "p20"
},
"y2": {
"scale": "yscale",
"field": "p80"
},
"opacity": {
"value": 0.2
}
}
}
},
{
"type": "area",
"from": { "data": "table" },
"from": {
"data": "table"
},
"encode": {
"enter": { "fill": { "value": "#4C78A8" } },
"enter": {
"fill": {
"value": "#4C78A8"
}
},
"update": {
"interpolate": { "value": "monotone" },
"x": { "scale": "xscale", "field": "x" },
"y": { "scale": "yscale", "field": "p30" },
"y2": { "scale": "yscale", "field": "p70" },
"opacity": { "value": 0.2 }
"interpolate": {
"value": "monotone"
},
"x": {
"scale": "xscale",
"field": "x"
},
"y": {
"scale": "yscale",
"field": "p30"
},
"y2": {
"scale": "yscale",
"field": "p70"
},
"opacity": {
"value": 0.2
}
}
}
},
{
"type": "area",
"from": { "data": "table" },
"from": {
"data": "table"
},
"encode": {
"enter": { "fill": { "value": "#4C78A8" } },
"enter": {
"fill": {
"value": "#4C78A8"
}
},
"update": {
"interpolate": { "value": "monotone" },
"x": { "scale": "xscale", "field": "x" },
"y": { "scale": "yscale", "field": "p40" },
"y2": { "scale": "yscale", "field": "p60" },
"opacity": { "value": 0.2 }
"interpolate": {
"value": "monotone"
},
"x": {
"scale": "xscale",
"field": "x"
},
"y": {
"scale": "yscale",
"field": "p40"
},
"y2": {
"scale": "yscale",
"field": "p60"
},
"opacity": {
"value": 0.2
}
}
}
},
{
"type": "line",
"from": { "data": "table" },
"from": {
"data": "table"
},
"encode": {
"update": {
"interpolate": { "value": "monotone" },
"stroke": { "value": "#4C78A8" },
"strokeWidth": { "value": 2 },
"opacity": { "value": 0.8 },
"x": { "scale": "xscale", "field": "x" },
"y": { "scale": "yscale", "field": "p50" }
"interpolate": {
"value": "monotone"
},
"stroke": {
"value": "#4C78A8"
},
"strokeWidth": {
"value": 2
},
"opacity": {
"value": 0.8
},
"x": {
"scale": "xscale",
"field": "x"
},
"y": {
"scale": "yscale",
"field": "p50"
}
}
}
}

5
packages/components/src/stories/Introduction.stories.mdx
View File

@ -2,8 +2,5 @@ import { Meta } from "@storybook/addon-docs";
<Meta title="Squiggle/Introduction" />
This is the component library for Squiggle. All of these components are react
This is the component library for Squiggle. These are React
components, and can be used in any application that you see fit.
Currently, the only component that is provided is the SquiggleChart component.
This component allows you to render the result of a squiggle expression.

60
packages/components/src/stories/NumberShower.stories.mdx Normal file
View File

@ -0,0 +1,60 @@
import { NumberShower } from "../NumberShower";
import { Canvas, Meta, Story, Props } from "@storybook/addon-docs";
<Meta title="Squiggle/NumberShower" component={NumberShower} />
# Number Shower
The number shower is a simple component to display a number.
It uses the symbols "K", "M", "B", and "T", to represent thousands, millions, billions, and trillions. Outside of that range, it uses scientific notation.
<Canvas>
<Story
name="Ten Thousand"
args={{
number: 10000,
precision: 2
}}
>
{args => <NumberShower {...args}/>}
</Story>
</Canvas>
<Canvas>
<Story
name="Ten Billion"
args={{
number: 10000000000,
precision: 2
}}
>
{args => <NumberShower {...args}/>}
</Story>
</Canvas>
<Canvas>
<Story
name="1.2*10^15"
args={{
number: 1200000000000000,
precision: 2
}}
>
{args => <NumberShower {...args}/>}
</Story>
</Canvas>
<Canvas>
<Story
name="1.35*10^-13"
args={{
number: 0.000000000000135,
precision: 2
}}
>
{args => <NumberShower {...args}/>}
</Story>
</Canvas>
<Props of={NumberShower} />

32
packages/components/src/stories/SquiggleChart.stories.mdx
View File

@ -18,7 +18,7 @@ could be continuous, discrete or mixed.
## Distributions
An example of a normal distribution is:
### Continuous Distributions
<Canvas>
<Story
@ -31,26 +31,26 @@ An example of a normal distribution is:
</Story>
</Canvas>
An example of a Discrete distribution is:
### Discrete Distributions
<Canvas>
<Story
name="Discrete"
args={{
squiggleString: "mm(0, 1, [0.5, 0.5])",
squiggleString: "mm(0, 1, 3, 5, 8, 10, [0.1, 0.8, 0.5, 0.3, 0.2, 0.1])",
}}
>
{Template.bind({})}
</Story>
</Canvas>
An example of a Mixed distribution is:
## Mixed distributions
<Canvas>
<Story
name="Mixed"
args={{
squiggleString: "mm(0, 5 to 10, [0.5, 0.5])",
squiggleString: "mm(0, 1, 3, 5, 8, normal(8, 1), [0.1, 0.3, 0.4, 0.35, 0.2, 0.8])",
}}
>
{Template.bind({})}
@ -66,7 +66,7 @@ to allow large and small numbers being printed cleanly.
<Story
name="Constant"
args={{
squiggleString: "500000 * 5000000",
squiggleString: "500000000",
}}
>
{Template.bind({})}
@ -75,14 +75,28 @@ to allow large and small numbers being printed cleanly.
## Functions
Finally, a function can be returned, and this shows how the distribution changes
over the axis between x = 0 and 10.
Full functions can be returned. These plot out the results of distributions between a set of x-coordinates.
The default is show 10 points between 0 and 10.
<Canvas>
<Story
name="Function"
args={{
squiggleString: "f(x) = normal(x,x)\nf",
squiggleString: "f(x) = normal(x^2,x^1.8)\nf",
}}
>
{Template.bind({})}
</Story>
</Canvas>
## Errors
<Canvas>
<Story
name="Error"
args={{
squiggleString: "f(x) = normal(",
}}
>
{Template.bind({})}

35
packages/components/src/stories/SquiggleEditor.stories.mdx Normal file
View File

@ -0,0 +1,35 @@
import { SquiggleEditor } from "../SquiggleEditor";
import { Canvas, Meta, Story, Props } from "@storybook/addon-docs";
<Meta title="Squiggle/SquiggleEditor" component={SquiggleEditor} />
export const Template = (props) => <SquiggleEditor {...props} />;
# Squiggle Editor
Squiggle Editor is a Squiggle chart with a text editor included for changing
the distribution.
<Canvas>
<Story
name="Normal"
args={{
initialSquiggleString: "normal(5,2)",
}}
>
{Template.bind({})}
</Story>
</Canvas>
You can also name variables like so:
<Canvas>
<Story
name="Variables"
args={{
initialSquiggleString: "x = 2\nnormal(x,2)",
}}
>
{Template.bind({})}
</Story>
</Canvas>

22
packages/components/src/stories/SquigglePlayground.stories.mdx Normal file
View File

@ -0,0 +1,22 @@
import SquigglePlayground from "../SquigglePlayground";
import { Canvas, Meta, Story, Props } from "@storybook/addon-docs";
<Meta title="Squiggle/SquigglePlayground" component={SquigglePlayground} />
export const Template = (props) => <SquigglePlayground {...props} />;
# Squiggle Playground
A Squiggle playground is an environment where you can play around with all settings,
including sampling settings, in squiggle.
<Canvas>
<Story
name="Normal"
args={{
initialSquiggleString: "normal(5,2)",
}}
>
{Template.bind({})}
</Story>
</Canvas>

2
packages/components/tsconfig.json
View File

@ -19,7 +19,7 @@
"files": ["src/spec-distributions.json", "src/spec-percentiles.json"],
"target": "ES6",
"include": ["src/**/*", "src/*"],
"exclude": ["node_modules", "**/*.spec.ts"],
"exclude": ["node_modules", "**/*.spec.ts", "webpack.config.js"],
"references": [
{
"path": "../squiggle-lang"

6
packages/components/webpack.config.js
View File

@ -12,12 +12,16 @@ module.exports = {
options: { projectReferences: true },
exclude: /node_modules/,
},
{
test: /\.css$/i,
use: ["style-loader", "css-loader"],
},
],
},
resolve: {
extensions: [".js", ".tsx", ".ts"],
alias: {
"@quri/squiggle-lang": path.resolve(__dirname, '../squiggle-lang/src/js')
"@quri/squiggle-lang": path.resolve(__dirname, "../squiggle-lang/src/js"),
},
},
output: {

16
packages/playground/.gitignore vendored
View File

@ -1,16 +0,0 @@
.DS_Store
.merlin
.bsb.lock
npm-debug.log
/node_modules/
.cache
.cache/*
dist
lib/*
*.cache
build
yarn-error.log
*.bs.js
# Local Netlify folder
.netlify
.idea

21
packages/playground/README.md
View File

@ -1,21 +0,0 @@
# TODO: REVIVE PLAYGROUND.
# Squiggle Playground
This repository contains the squiggle playground, a small web interface
for playing around with squiggle concepts.
It depends on `@quri/squiggle-components` and `@quri/squiggle-lang` so both of them will
need to be packaged for this to work. This can be done from the root directory
with
```
yarn build:lang
yarn build:components
```
Then, starting the playground can be done with:
```
yarn parcel
```

4
packages/playground/netlify.toml
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@ -1,4 +0,0 @@
[[redirects]]
from = "/*"
to = "/index.html"
status = 200

54
packages/playground/package.json
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@ -1,54 +0,0 @@
{
"name": "@quri/squiggle-playground",
"version": "0.1.0",
"homepage": "https://foretold-app.github.io/estiband/",
"scripts": {
"parcel": "parcel ./src/index.html",
"parcel-build": "parcel build ./src/index.html --no-source-maps --no-autoinstall --no-scope-hoist",
"deploy": "gh-pages -d dist",
"ci": "yarn parcel-build"
},
"keywords": [],
"author": "",
"license": "MIT",
"dependencies": {
"@emotion/react": "^11.8.2",
"@quri/squiggle-lang": "^0.2.2",
"ace-builds": "^1.4.12",
"antd": "^4.19.3",
"babel-plugin-transform-es2015-modules-commonjs": "^6.26.2",
"binary-search-tree": "0.2.6",
"css-loader": "^6.7.1",
"gh-pages": "3.2.3",
"jstat": "1.9.5",
"lenses-ppx": "6.1.10",
"less": "4.1.2",
"lodash": "4.17.21",
"mathjs": "10.4.3",
"moduleserve": "0.9.1",
"moment": "2.29.1",
"pdfast": "^0.2.0",
"rationale": "0.2.0",
"react": "18.0.0",
"react-ace": "^9.2.0",
"react-dom": "^18.0.0",
"react-use": "^17.3.2",
"react-vega": "^7.5.0",
"vega": "*",
"vega-embed": "6.20.8",
"vega-lite": "*"
},
"devDependencies": {
"@emotion/babel-plugin": "^11.7.2",
"@parcel/core": "^2.4.0",
"@types/react": "^18.0.0",
"autoprefixer": "^10.4.4",
"docsify": "^4.12.2",
"jest": "^27.5.1",
"parcel": "^2.4.0",
"postcss": "^8.4.7",
"postcss-cli": "^9.1.0",
"tailwindcss": "^3.0.23",
"typescript": "^4.6.3"
}
}

6
packages/playground/postcss.config.js
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@ -1,6 +0,0 @@
module.exports = {
plugins: {
tailwindcss: {},
autoprefixer: {},
},
}

9
packages/playground/src/Index.tsx
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@ -1,9 +0,0 @@
import React from 'react'
import { render } from "react-dom"
import DistBuilder from "./components/DistBuilder"
var root = document.querySelector("#app")
if (!(root == null)) {
render(<DistBuilder />, root)
}

34
packages/playground/src/components/CodeEditor.tsx
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@ -1,34 +0,0 @@
import React, {FC} from "react";
import AceEditor from "react-ace";
import "ace-builds/src-noconflict/mode-golang";
import "ace-builds/src-noconflict/theme-github";
import "ace-builds/src-noconflict/ext-language_tools";
import "ace-builds/src-noconflict/keybinding-vim";
interface CodeEditorProps {
value : string,
onChange : (value: string) => void
}
export let CodeEditor : FC<CodeEditorProps> = (props) =>
<AceEditor
value={props.value}
mode="golang"
height="400px"
width="100%"
theme="github"
showGutter={false}
highlightActiveLine={false}
showPrintMargin={false}
onChange={props.onChange}
name="UNIQUE_ID_OF_DIV"
editorProps={{
$blockScrolling: true,
}}
setOptions={{
enableBasicAutocompletion: false,
enableLiveAutocompletion: true,
enableSnippets: true,
}}
/>

171
packages/playground/src/components/DistBuilder.tsx
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@ -1,171 +0,0 @@
import { FC, useState } from "react"
import { SquiggleChart } from "@quri/squiggle-components"
import { CodeEditor } from "./CodeEditor"
import { Form, Input, Card, Row, Col } from "antd"
import { css } from '@emotion/react'
interface FieldFloatProps {
label : string,
className? : string,
value : number,
onChange : (value: number) => void,
}
function FieldFloat(Props: FieldFloatProps) {
let [contents, setContents] = useState(Props.value + "");
return <Form.Item label={Props.label}>
<Input
value={contents}
className={Props.className ? Props.className : ""}
onChange={(e) => setContents(e.target.value)}
onBlur={(_) => {
let result = parseFloat(contents);
if(result != NaN) {
Props.onChange(result)
}
}}
/>
</Form.Item>
}
let rows = css`
>.antCol:firstChild {
paddingLeft: 0.25em;
paddingRight: 0.125em;
}
>.antCol:lastChild {
paddingLeft: 0.125em;
paddingRight: 0.25em;
}
>.antCol:not(:lastChild):not(:lastChild) {
paddingLeft: 0.125em;
paddingRight: 0.125em;
}
`
let parent = css`
.antImportNumber {
width: 100%;
}
.anticon {
verticalAlign: "zero";
}
`
var form = css`
backgroundColor: #eee;
padding: 1em;
`
var dist = css`
padding: 1em;
`
var spacer = css`
marginTop: 1em;
`
var groupA = css`
.antInputNumberInputs {
backgroundColor: #fff7db;
}
`
var groupB = css`
.antInputNumberInput {
backgroundColor: #eaf4ff;
}
`
var Styles = {
rows: rows,
parent: parent,
form: form,
dist: dist,
spacer: spacer,
groupA: groupA,
groupB: groupB
};
let DistBuilder : FC<{}> = (_: {}) => {
let [squiggleString, setSquiggleString] = useState("mm(normal(5,2), normal(10,2))")
let [sampleCount, setSampleCount] = useState(1000)
let [outputXYPoints, setOutputXYPoints] = useState(1000)
let [pointDistLength, setPointDistLength] = useState(undefined)
let [kernelWidth, setKernelWidth] = useState(undefined)
let [diagramStart, setDiagramStart] = useState(0)
let [diagramStop, setDiagramStop] = useState(10)
let [diagramCount, setDiagramCount] = useState(20)
var demoDist =
<SquiggleChart
squiggleString={squiggleString}
sampleCount={sampleCount}
outputXYPoints={outputXYPoints}
diagramStart={diagramStart}
diagramStop={diagramStop}
diagramCount={diagramCount}
pointDistLength={pointDistLength}
/>
return (
<div className="grid grid-cols-2 gap-4">
<div>
<Card
title="Distribution Form">
<Form>
<Row css={Styles.rows}>
<Col span={24}>
<CodeEditor value={squiggleString} onChange={setSquiggleString} /> </Col>
</Row>
<Row css={Styles.rows}>
<Col span={12}>
<FieldFloat
value={sampleCount}
label="Sample Count"
onChange={setSampleCount}
/> </Col>
<Col span={12}>
<FieldFloat
value={outputXYPoints}
onChange={setOutputXYPoints}
label="Output XY-points" />
</Col>
<Col span={12}>
<FieldFloat
value={pointDistLength}
onChange={setPointDistLength}
label="Downsample To"
/>
</Col>
<Col span={12}>
<FieldFloat
value={kernelWidth}
onChange={setKernelWidth}
label="Kernel Width"
/> </Col>
<Col span={12}>
<FieldFloat
value={diagramStart}
onChange={setDiagramStart}
label="Diagram Start"
/>
</Col>
<Col span={12}>
<FieldFloat
value={diagramStop}
onChange={setDiagramStop}
label="Diagram Stop"
/> </Col>
<Col span={12}>
<FieldFloat
value={diagramCount}
onChange={setDiagramCount}
label="Diagram Count"
/>
</Col>
</Row>
</Form>
</Card>
</div>
{demoDist}
</div>
)
}
export default DistBuilder

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packages/playground/src/index.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Squiggle Language</title>
<link href="https://fonts.googleapis.com/css?family=Lato:300,400,700,900" rel="stylesheet">
<link href="./styles/antd.css" rel="stylesheet">
<link href="./styles/index.css" rel="stylesheet">
<script type="module" src="./Index.tsx" defer></script>
</head>
<body>
<div id="app" style="height: 100%"></div>
</body>
</html>

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packages/playground/src/styles/antd.css
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packages/playground/src/styles/index.css
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@tailwind base;
@tailwind components;
@tailwind utilities;

9
packages/playground/tailwind.config.js
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module.exports = {
content: [
"./src/components/*.tsx"
],
theme: {
extend: {},
},
plugins: [],
}

19
packages/playground/tsconfig.json
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{
"compilerOptions": {
"module": "commonjs",
"jsx": "react-jsx",
"jsxImportSource": "@emotion/react",
"noImplicitAny": false,
"removeComments": true,
"preserveConstEnums": true,
"esModuleInterop": true,
"resolveJsonModule": true,
"outDir": "./dist",
"declarationDir": "./dist",
"declaration": true,
"sourceMap": true
},
"target": "ES6",
"include": ["src/**/*"],
"exclude": ["node_modules", "**/*.spec.ts"]
}

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packages/playground/yarn.nix
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2
packages/squiggle-lang/.gitignore vendored
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@ -17,3 +17,5 @@ yarn-error.log
*.gen.tsx
*.gen.js
dist
*.coverage
_coverage

3
packages/squiggle-lang/README.md
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@ -13,6 +13,9 @@ Other:
yarn start # listens to files and recompiles at every mutation
yarn test
yarn test:watch # keeps an active session and runs all tests at every mutation
# where o := open in osx and o := xdg-open in linux,
yarn coverage; o _coverage/index.html # produces coverage report and opens it in browser
```
## Information

4
packages/squiggle-lang/__tests__/Bandwidth__Test.res → packages/squiggle-lang/__tests__/Bandwidth_test.res
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@ -4,10 +4,10 @@ open Expect
describe("Bandwidth", () => {
test("nrd0()", () => {
let data = [1., 4., 3., 2.]
expect(Bandwidth.nrd0(data)) -> toEqual(0.7625801874014622)
expect(SampleSetDist_Bandwidth.nrd0(data)) -> toEqual(0.7625801874014622)
})
test("nrd()", () => {
let data = [1., 4., 3., 2.]
expect(Bandwidth.nrd(data)) -> toEqual(0.8981499984950554)
expect(SampleSetDist_Bandwidth.nrd(data)) -> toEqual(0.8981499984950554)
})
})

89
packages/squiggle-lang/__tests__/DistTypes__Test.res
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@ -1,89 +0,0 @@
open Jest
open Expect
let makeTest = (~only=false, str, item1, item2) =>
only
? Only.test(str, () => expect(item1) -> toEqual(item2))
: test(str, () => expect(item1) -> toEqual(item2))
describe("PointSetTypes", () =>
describe("Domain", () => {
let makeComplete = (yPoint, expectation) =>
makeTest(
"With input: " ++ Js.Float.toString(yPoint),
PointSetTypes.Domain.yPointToSubYPoint(Complete, yPoint),
expectation,
)
let makeSingle = (direction: [#left | #right], excludingProbabilityMass, yPoint, expectation) =>
makeTest(
"Excluding: " ++
(Js.Float.toString(excludingProbabilityMass) ++
(" and yPoint: " ++ Js.Float.toString(yPoint))),
PointSetTypes.Domain.yPointToSubYPoint(
direction == #left
? LeftLimited({xPoint: 3.0, excludingProbabilityMass: excludingProbabilityMass})
: RightLimited({xPoint: 3.0, excludingProbabilityMass: excludingProbabilityMass}),
yPoint,
),
expectation,
)
let makeDouble = (domain, yPoint, expectation) =>
makeTest("Excluding: limits", PointSetTypes.Domain.yPointToSubYPoint(domain, yPoint), expectation)
describe("With Complete Domain", () => {
makeComplete(0.0, Some(0.0))
makeComplete(0.6, Some(0.6))
makeComplete(1.0, Some(1.0))
})
describe("With Left Limit", () => {
makeSingle(#left, 0.5, 1.0, Some(1.0))
makeSingle(#left, 0.5, 0.75, Some(0.5))
makeSingle(#left, 0.8, 0.9, Some(0.5))
makeSingle(#left, 0.5, 0.4, None)
makeSingle(#left, 0.5, 0.5, Some(0.0))
})
describe("With Right Limit", () => {
makeSingle(#right, 0.5, 1.0, None)
makeSingle(#right, 0.5, 0.25, Some(0.5))
makeSingle(#right, 0.8, 0.5, None)
makeSingle(#right, 0.2, 0.2, Some(0.25))
makeSingle(#right, 0.5, 0.5, Some(1.0))
makeSingle(#right, 0.5, 0.0, Some(0.0))
makeSingle(#right, 0.5, 0.5, Some(1.0))
})
describe("With Left and Right Limit", () => {
makeDouble(
LeftAndRightLimited(
{excludingProbabilityMass: 0.25, xPoint: 3.0},
{excludingProbabilityMass: 0.25, xPoint: 10.0},
),
0.5,
Some(0.5),
)
makeDouble(
LeftAndRightLimited(
{excludingProbabilityMass: 0.1, xPoint: 3.0},
{excludingProbabilityMass: 0.1, xPoint: 10.0},
),
0.2,
Some(0.125),
)
makeDouble(
LeftAndRightLimited(
{excludingProbabilityMass: 0.1, xPoint: 3.0},
{excludingProbabilityMass: 0.1, xPoint: 10.0},
),
0.1,
Some(0.0),
)
makeDouble(
LeftAndRightLimited(
{excludingProbabilityMass: 0.1, xPoint: 3.0},
{excludingProbabilityMass: 0.1, xPoint: 10.0},
),
0.05,
None,
)
})
})
)

103
packages/squiggle-lang/__tests__/Distributions/DistributionOperation_test.res Normal file
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open Jest
open Expect
let env: DistributionOperation.env = {
sampleCount: 100,
xyPointLength: 100,
}
let {
normalDist5,
normalDist10,
normalDist20,
normalDist,
uniformDist,
betaDist,
lognormalDist,
cauchyDist,
triangularDist,
exponentialDist,
} = module(GenericDist_Fixtures)
let mkNormal = (mean, stdev) => GenericDist_Types.Symbolic(#Normal({mean: mean, stdev: stdev}))
let {toFloat, toDist, toString, toError} = module(DistributionOperation.Output)
let {run} = module(DistributionOperation)
let {fmap} = module(DistributionOperation.Output)
let run = run(~env)
let outputMap = fmap(~env)
let toExt: option<'a> => 'a = E.O.toExt(
"Should be impossible to reach (This error is in test file)",
)
describe("sparkline", () => {
let runTest = (
name: string,
dist: GenericDist_Types.genericDist,
expected: DistributionOperation.outputType,
) => {
test(name, () => {
let result = DistributionOperation.run(~env, FromDist(ToString(ToSparkline(20)), dist))
expect(result)->toEqual(expected)
})
}
runTest(
"normal",
normalDist,
String(`▁▁▁▁▁▂▄▆▇██▇▆▄▂▁▁▁▁▁`),
)
runTest(
"uniform",
uniformDist,
String(`████████████████████`),
)
runTest("beta", betaDist, String(`▁▄▇████▇▆▅▄▃▃▂▁▁▁▁▁▁`))
runTest(
"lognormal",
lognormalDist,
String(`▁█▂▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁`),
)
runTest(
"cauchy",
cauchyDist,
String(`▁▁▁▁▁▁▁▁▁██▁▁▁▁▁▁▁▁▁`),
)
runTest(
"triangular",
triangularDist,
String(`▁▁▂▃▄▅▆▇████▇▆▅▄▃▂▁▁`),
)
runTest(
"exponential",
exponentialDist,
String(`█▅▄▂▂▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁`),
)
})
describe("toPointSet", () => {
test("on symbolic normal distribution", () => {
let result =
run(FromDist(ToDist(ToPointSet), normalDist5))
->outputMap(FromDist(ToFloat(#Mean)))
->toFloat
->toExt
expect(result)->toBeSoCloseTo(5.0, ~digits=0)
})
test("on sample set", () => {
let result =
run(FromDist(ToDist(ToPointSet), normalDist5))
->outputMap(FromDist(ToDist(ToSampleSet(1000))))
->outputMap(FromDist(ToDist(ToPointSet)))
->outputMap(FromDist(ToFloat(#Mean)))
->toFloat
->toExt
expect(result)->toBeSoCloseTo(5.0, ~digits=-1)
})
})

11
packages/squiggle-lang/__tests__/Distributions/GenericDist_Fixtures.res Normal file
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let normalDist5: GenericDist_Types.genericDist = Symbolic(#Normal({mean: 5.0, stdev: 2.0}))
let normalDist10: GenericDist_Types.genericDist = Symbolic(#Normal({mean: 10.0, stdev: 2.0}))
let normalDist20: GenericDist_Types.genericDist = Symbolic(#Normal({mean: 20.0, stdev: 2.0}))
let normalDist: GenericDist_Types.genericDist = normalDist5
let betaDist: GenericDist_Types.genericDist = Symbolic(#Beta({alpha: 2.0, beta: 5.0}))
let lognormalDist: GenericDist_Types.genericDist = Symbolic(#Lognormal({mu: 0.0, sigma: 1.0}))
let cauchyDist: GenericDist_Types.genericDist = Symbolic(#Cauchy({local: 1.0, scale: 1.0}))
let triangularDist: GenericDist_Types.genericDist = Symbolic(#Triangular({low: 1.0, medium: 2.0, high: 3.0}))
let exponentialDist: GenericDist_Types.genericDist = Symbolic(#Exponential({rate: 2.0}))
let uniformDist: GenericDist_Types.genericDist = Symbolic(#Uniform({low: 9.0, high: 10.0}))

70
packages/squiggle-lang/__tests__/Distributions/Mixture_test.res Normal file
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open Jest
open Expect
open TestHelpers
// TODO: use Normal.make (etc.), but preferably after the new validation dispatch is in.
let mkNormal = (mean, stdev) => GenericDist_Types.Symbolic(#Normal({mean: mean, stdev: stdev}))
let mkBeta = (alpha, beta) => GenericDist_Types.Symbolic(#Beta({alpha: alpha, beta: beta}))
let mkExponential = rate => GenericDist_Types.Symbolic(#Exponential({rate: rate}))
let mkUniform = (low, high) => GenericDist_Types.Symbolic(#Uniform({low: low, high: high}))
let mkCauchy = (local, scale) => GenericDist_Types.Symbolic(#Cauchy({local: local, scale: scale}))
let mkLognormal = (mu, sigma) => GenericDist_Types.Symbolic(#Lognormal({mu: mu, sigma: sigma}))
describe("mixture", () => {
testAll("fair mean of two normal distributions", list{(0.0, 1e2), (-1e1, -1e-4), (-1e1, 1e2), (-1e1, 1e1)}, tup => { // should be property
let (mean1, mean2) = tup
let meanValue = {
run(Mixture([(mkNormal(mean1, 9e-1), 0.5), (mkNormal(mean2, 9e-1), 0.5)]))
-> outputMap(FromDist(ToFloat(#Mean)))
}
meanValue -> unpackFloat -> expect -> toBeSoCloseTo((mean1 +. mean2) /. 2.0, ~digits=-1)
})
testAll(
"weighted mean of a beta and an exponential",
// This would not survive property testing, it was easy for me to find cases that NaN'd out.
list{((128.0, 1.0), 2.0), ((2e-1, 64.0), 16.0), ((1e0, 1e0), 64.0)},
tup => {
let ((alpha, beta), rate) = tup
let betaWeight = 0.25
let exponentialWeight = 0.75
let meanValue = {
run(Mixture(
[
(mkBeta(alpha, beta), betaWeight),
(mkExponential(rate), exponentialWeight)
]
)) -> outputMap(FromDist(ToFloat(#Mean)))
}
let betaMean = 1.0 /. (1.0 +. beta /. alpha)
let exponentialMean = 1.0 /. rate
meanValue
-> unpackFloat
-> expect
-> toBeSoCloseTo(
betaWeight *. betaMean +. exponentialWeight *. exponentialMean,
~digits=-1
)
}
)
testAll(
"weighted mean of lognormal and uniform",
// Would not survive property tests: very easy to find cases that NaN out.
list{((-1e2,1e1), (2e0,1e0)), ((-1e-16,1e-16), (1e-8,1e0)), ((0.0,1e0), (1e0,1e-2))},
tup => {
let ((low, high), (mu, sigma)) = tup
let uniformWeight = 0.6
let lognormalWeight = 0.4
let meanValue = {
run(Mixture([(mkUniform(low, high), uniformWeight), (mkLognormal(mu, sigma), lognormalWeight)]))
-> outputMap(FromDist(ToFloat(#Mean)))
}
let uniformMean = (low +. high) /. 2.0
let lognormalMean = mu +. sigma ** 2.0 /. 2.0
meanValue
-> unpackFloat
-> expect
-> toBeSoCloseTo(uniformWeight *. uniformMean +. lognormalWeight *. lognormalMean, ~digits=-1)
}
)
})

41
packages/squiggle-lang/__tests__/Distributions/SampleSetDist_test.res Normal file
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open Jest
open TestHelpers
describe("Continuous and discrete splits", () => {
makeTest(
"splits (1)",
SampleSetDist_ToPointSet.Internals.T.splitContinuousAndDiscrete([1.432, 1.33455, 2.0]),
([1.432, 1.33455, 2.0], E.FloatFloatMap.empty()),
)
makeTest(
"splits (2)",
SampleSetDist_ToPointSet.Internals.T.splitContinuousAndDiscrete([
1.432,
1.33455,
2.0,
2.0,
2.0,
2.0,
]) |> (((c, disc)) => (c, disc |> E.FloatFloatMap.toArray)),
([1.432, 1.33455], [(2.0, 4.0)]),
)
let makeDuplicatedArray = count => {
let arr = Belt.Array.range(1, count) |> E.A.fmap(float_of_int)
let sorted = arr |> Belt.SortArray.stableSortBy(_, compare)
E.A.concatMany([sorted, sorted, sorted, sorted]) |> Belt.SortArray.stableSortBy(_, compare)
}
let (_, discrete1) = SampleSetDist_ToPointSet.Internals.T.splitContinuousAndDiscrete(
makeDuplicatedArray(10),
)
let toArr1 = discrete1 |> E.FloatFloatMap.toArray
makeTest("splitMedium at count=10", toArr1 |> Belt.Array.length, 10)
let (_c, discrete2) = SampleSetDist_ToPointSet.Internals.T.splitContinuousAndDiscrete(
makeDuplicatedArray(500),
)
let toArr2 = discrete2 |> E.FloatFloatMap.toArray
makeTest("splitMedium at count=500", toArr2 |> Belt.Array.length, 500)
})

161
packages/squiggle-lang/__tests__/Distributions/Symbolic_test.res Normal file
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open Jest
open Expect
open TestHelpers
// TODO: use Normal.make (but preferably after teh new validation dispatch is in)
let mkNormal = (mean, stdev) => GenericDist_Types.Symbolic(#Normal({mean: mean, stdev: stdev}))
describe("(Symbolic) normalize", () => {
testAll("has no impact on normal distributions", list{-1e8, -1e-2, 0.0, 1e-4, 1e16}, mean => {
let normalValue = mkNormal(mean, 2.0)
let normalizedValue = run(FromDist(ToDist(Normalize), normalValue))
normalizedValue
-> unpackDist
-> expect
-> toEqual(normalValue)
})
})
describe("(Symbolic) mean", () => {
testAll("of normal distributions", list{-1e8, -16.0, -1e-2, 0.0, 1e-4, 32.0, 1e16}, mean => {
run(FromDist(ToFloat(#Mean), mkNormal(mean, 4.0)))
-> unpackFloat
-> expect
-> toBeCloseTo(mean)
})
Skip.test("of normal(0, -1) (it NaNs out)", () => {
run(FromDist(ToFloat(#Mean), mkNormal(1e1, -1e0)))
-> unpackFloat
-> expect
-> ExpectJs.toBeFalsy
})
test("of normal(0, 1e-8) (it doesn't freak out at tiny stdev)", () => {
run(FromDist(ToFloat(#Mean), mkNormal(0.0, 1e-8)))
-> unpackFloat
-> expect
-> toBeCloseTo(0.0)
})
testAll("of exponential distributions", list{1e-7, 2.0, 10.0, 100.0}, rate => {
let meanValue = run(FromDist(ToFloat(#Mean), GenericDist_Types.Symbolic(#Exponential({rate: rate}))))
meanValue -> unpackFloat -> expect -> toBeCloseTo(1.0 /. rate) // https://en.wikipedia.org/wiki/Exponential_distribution#Mean,_variance,_moments,_and_median
})
test("of a cauchy distribution", () => {
let meanValue = run(FromDist(ToFloat(#Mean), GenericDist_Types.Symbolic(#Cauchy({local: 1.0, scale: 1.0}))))
meanValue
-> unpackFloat
-> expect
-> toBeCloseTo(2.01868297874546)
//-> toBe(GenDistError(Other("Cauchy distributions may have no mean value.")))
})
testAll("of triangular distributions", list{(1.0,2.0,3.0), (-1e7,-1e-7,1e-7), (-1e-7,1e0,1e7), (-1e-16,0.0,1e-16)}, tup => {
let (low, medium, high) = tup
let meanValue = run(FromDist(
ToFloat(#Mean),
GenericDist_Types.Symbolic(#Triangular({low: low, medium: medium, high: high}))
))
meanValue
-> unpackFloat
-> expect
-> toBeCloseTo((low +. medium +. high) /. 3.0) // https://www.statology.org/triangular-distribution/
})
// TODO: nonpositive inputs are SUPPOSED to crash.
testAll("of beta distributions", list{(1e-4, 6.4e1), (1.28e2, 1e0), (1e-16, 1e-16), (1e16, 1e16), (-1e4, 1e1), (1e1, -1e4)}, tup => {
let (alpha, beta) = tup
let meanValue = run(FromDist(
ToFloat(#Mean),
GenericDist_Types.Symbolic(#Beta({alpha: alpha, beta: beta}))
))
meanValue
-> unpackFloat
-> expect
-> toBeCloseTo(1.0 /. (1.0 +. (beta /. alpha))) // https://en.wikipedia.org/wiki/Beta_distribution#Mean
})
// TODO: When we have our theory of validators we won't want this to be NaN but to be an error.
test("of beta(0, 0)", () => {
let meanValue = run(FromDist(
ToFloat(#Mean),
GenericDist_Types.Symbolic(#Beta({alpha: 0.0, beta: 0.0}))
))
meanValue
-> unpackFloat
-> expect
-> ExpectJs.toBeFalsy
})
testAll("of lognormal distributions", list{(2.0, 4.0), (1e-7, 1e-2), (-1e6, 10.0), (1e3, -1e2), (-1e8, -1e4), (1e2, 1e-5)}, tup => {
let (mu, sigma) = tup
let meanValue = run(FromDist(
ToFloat(#Mean),
GenericDist_Types.Symbolic(#Lognormal({mu: mu, sigma: sigma}))
))
meanValue
-> unpackFloat
-> expect
-> toBeCloseTo(Js.Math.exp(mu +. sigma ** 2.0 /. 2.0 )) // https://brilliant.org/wiki/log-normal-distribution/
})
testAll("of uniform distributions", list{(1e-5, 12.345), (-1e4, 1e4), (-1e16, -1e2), (5.3e3, 9e9)}, tup => {
let (low, high) = tup
let meanValue = run(FromDist(
ToFloat(#Mean),
GenericDist_Types.Symbolic(#Uniform({low: low, high: high}))
))
meanValue
-> unpackFloat
-> expect
-> toBeCloseTo((low +. high) /. 2.0) // https://en.wikipedia.org/wiki/Continuous_uniform_distribution#Moments
})
test("of a float", () => {
let meanValue = run(FromDist(
ToFloat(#Mean),
GenericDist_Types.Symbolic(#Float(7.7))
))
meanValue -> unpackFloat -> expect -> toBeCloseTo(7.7)
})
})
describe("Normal distribution with sparklines", () => {
let parameterWiseAdditionPdf = (n1: SymbolicDistTypes.normal, n2: SymbolicDistTypes.normal) => {
let normalDistAtSumMeanConstr = SymbolicDist.Normal.add(n1, n2)
let normalDistAtSumMean: SymbolicDistTypes.normal = switch normalDistAtSumMeanConstr {
| #Normal(params) => params
}
x => SymbolicDist.Normal.pdf(x, normalDistAtSumMean)
}
let normalDistAtMean5: SymbolicDistTypes.normal = {mean: 5.0, stdev: 2.0}
let normalDistAtMean10: SymbolicDistTypes.normal = {mean: 10.0, stdev: 2.0}
let range20Float = E.A.Floats.range(0.0, 20.0, 20) // [0.0,1.0,2.0,3.0,4.0,...19.0,]
test("mean=5 pdf", () => {
let pdfNormalDistAtMean5 = x => SymbolicDist.Normal.pdf(x, normalDistAtMean5)
let sparklineMean5 = fnImage(pdfNormalDistAtMean5, range20Float)
Sparklines.create(sparklineMean5, ())
-> expect
-> toEqual(`▁▂▃▆██▇▅▂▁▁▁▁▁▁▁▁▁▁▁`)
})
test("parameter-wise addition of two normal distributions", () => {
let sparklineMean15 = normalDistAtMean5 -> parameterWiseAdditionPdf(normalDistAtMean10) -> fnImage(range20Float)
Sparklines.create(sparklineMean15, ())
-> expect
-> toEqual(`▁▁▁▁▁▁▁▁▁▂▃▄▆███▇▅▄▂`)
})
test("mean=10 cdf", () => {
let cdfNormalDistAtMean10 = x => SymbolicDist.Normal.cdf(x, normalDistAtMean10)
let sparklineMean10 = fnImage(cdfNormalDistAtMean10, range20Float)
Sparklines.create(sparklineMean10, ())
-> expect
-> toEqual(`▁▁▁▁▁▁▁▁▂▄▅▇████████`)
})
})

95
packages/squiggle-lang/__tests__/JS__Test.ts
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@ -1,34 +1,87 @@
import { run } from '../src/js/index';
import { run, GenericDist, resultMap, makeSampleSetDist } from "../src/js/index";
let testRun = (x: string) => {
let result = run(x)
if(result.tag == 'Ok'){
return { tag: 'Ok', value: result.value.exports }
}
else {
return result
}
let result = run(x);
if (result.tag == "Ok") {
return { tag: "Ok", value: result.value.exports };
} else {
return result;
}
};
describe("Simple calculations and results", () => {
test("mean(normal(5,2))", () => {
expect(testRun("mean(normal(5,2))")).toEqual({ tag: 'Ok', value: [ { NAME: 'Float', VAL: 5 } ] })
})
expect(testRun("mean(normal(5,2))")).toEqual({
tag: "Ok",
value: [{ NAME: "Float", VAL: 5 }],
});
});
test("10+10", () => {
let foo = testRun("10 + 10")
expect(foo).toEqual({ tag: 'Ok', value: [ { NAME: 'Float', VAL: 20 } ] })
})
})
let foo = testRun("10 + 10");
expect(foo).toEqual({ tag: "Ok", value: [{ NAME: "Float", VAL: 20 }] });
});
});
describe("Log function", () => {
test("log(1) = 0", () => {
let foo = testRun("log(1)")
expect(foo).toEqual({ tag: 'Ok', value: [ { NAME: 'Float', VAL: 0} ]})
})
})
let foo = testRun("log(1)");
expect(foo).toEqual({ tag: "Ok", value: [{ NAME: "Float", VAL: 0 }] });
});
});
describe("Multimodal too many weights error", () => {
test("mm(0,0,[0,0,0])", () => {
let foo = testRun("mm(0,0,[0,0,0])")
expect(foo).toEqual({ "tag": "Error", "value": "Function multimodal error: Too many weights provided" })
})
let foo = testRun("mm(0,0,[0,0,0])");
expect(foo).toEqual({
tag: "Error",
value: "Function multimodal error: Too many weights provided",
});
});
});
describe("GenericDist", () => {
//It's important that sampleCount is less than 9. If it's more, than that will create randomness
//Also, note, the value should be created using makeSampleSetDist() later on.
let env = { sampleCount: 8, xyPointLength: 100 };
let dist = new GenericDist(
{ tag: "SampleSet", value: [3, 4, 5, 6, 6, 7, 10, 15, 30] },
env
);
let dist2 = new GenericDist(
{ tag: "SampleSet", value: [20, 22, 24, 29, 30, 35, 38, 44, 52] },
env
);
test("mean", () => {
expect(dist.mean().value).toBeCloseTo(3.737);
});
test("pdf", () => {
expect(dist.pdf(5.0).value).toBeCloseTo(0.0431);
});
test("cdf", () => {
expect(dist.cdf(5.0).value).toBeCloseTo(0.155);
});
test("inv", () => {
expect(dist.inv(0.5).value).toBeCloseTo(9.458);
});
test("toPointSet", () => {
expect(
resultMap(dist.toPointSet(), (r: GenericDist) => r.toString()).value.value
).toBe("Point Set Distribution");
});
test("toSparkline", () => {
expect(dist.toSparkline(20).value).toBe("▁▁▃▅███▆▄▃▂▁▁▂▂▃▂▁▁▁");
});
test("algebraicAdd", () => {
expect(
resultMap(dist.algebraicAdd(dist2), (r: GenericDist) => r.toSparkline(20))
.value.value
).toBe("▁▁▂▄▆████▇▆▄▄▃▃▃▂▁▁▁");
});
test("pointwiseAdd", () => {
expect(
resultMap(dist.pointwiseAdd(dist2), (r: GenericDist) => r.toSparkline(20))
.value.value
).toBe("▁▂▅██▅▅▅▆▇█▆▅▃▃▂▂▁▁▁");
});
});

0
packages/squiggle-lang/__tests__/Lodash__test.res → packages/squiggle-lang/__tests__/Lodash_test.res
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25
packages/squiggle-lang/__tests__/Reducer/Reducer_Dispatch/Reducer_Dispatch_BuiltIn_test.res Normal file
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@ -0,0 +1,25 @@
module ExpressionValue = ReducerInterface.ExpressionValue
open Jest
open Expect
let expectEvalToBe = (expr: string, answer: string) =>
Reducer.eval(expr)->ExpressionValue.toStringResult->expect->toBe(answer)
describe("builtin", () => {
// All MathJs operators and functions are available for string, number and boolean
// .e.g + - / * > >= < <= == /= not and or
// See https://mathjs.org/docs/expressions/syntax.html
// See https://mathjs.org/docs/reference/functions.html
test("-1", () => expectEvalToBe("-1", "Ok(-1)"))
test("1-1", () => expectEvalToBe("1-1", "Ok(0)"))
test("2>1", () => expectEvalToBe("2>1", "Ok(true)"))
test("concat('a','b')", () => expectEvalToBe("concat('a','b')", "Ok('ab')"))
})
describe("builtin exception", () => {
//It's a pity that MathJs does not return error position
test("MathJs Exception", () =>
expectEvalToBe("testZadanga()", "Error(JS Exception: Error: Undefined function testZadanga)")
)
})

32
packages/squiggle-lang/__tests__/Reducer/Reducer_MathJs/Reducer_MathJsEval_test.res Normal file
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open ReducerInterface.ExpressionValue
module MathJs = Reducer.MathJs
module ErrorValue = Reducer.ErrorValue
open Jest
open ExpectJs
describe("eval", () => {
test("Number", () => expect(MathJs.Eval.eval("1"))->toEqual(Ok(EvNumber(1.))))
test("Number expr", () => expect(MathJs.Eval.eval("1-1"))->toEqual(Ok(EvNumber(0.))))
test("String", () => expect(MathJs.Eval.eval("'hello'"))->toEqual(Ok(EvString("hello"))))
test("String expr", () =>
expect(MathJs.Eval.eval("concat('hello ','world')"))->toEqual(Ok(EvString("hello world")))
)
test("Boolean", () => expect(MathJs.Eval.eval("true"))->toEqual(Ok(EvBool(true))))
test("Boolean expr", () => expect(MathJs.Eval.eval("2>1"))->toEqual(Ok(EvBool(true))))
})
describe("errors", () => {
// All those errors propagete up and are returned by the resolver
test("unknown function", () =>
expect(MathJs.Eval.eval("testZadanga()"))->toEqual(
Error(ErrorValue.REJavaScriptExn(Some("Undefined function testZadanga"), Some("Error"))),
)
)
test("unknown answer type", () =>
expect(MathJs.Eval.eval("1+1i"))->toEqual(
Error(ErrorValue.RETodo("Unhandled MathJs literal type: object")),
)
)
})

51
packages/squiggle-lang/__tests__/Reducer/Reducer_MathJs/Reducer_MathJsParse_test.res Normal file
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module Parse = Reducer.MathJs.Parse
module Result = Belt.Result
open Jest
open Expect
let expectParseToBe = (expr, answer) =>
Parse.parse(expr)->Result.flatMap(Parse.castNodeType)->Parse.toStringResult->expect->toBe(answer)
describe("MathJs parse", () => {
describe("literals operators paranthesis", () => {
test("1", () => expectParseToBe("1", "1"))
test("'hello'", () => expectParseToBe("'hello'", "'hello'"))
test("true", () => expectParseToBe("true", "true"))
test("1+2", () => expectParseToBe("1+2", "add(1, 2)"))
test("add(1,2)", () => expectParseToBe("add(1,2)", "add(1, 2)"))
test("(1)", () => expectParseToBe("(1)", "(1)"))
test("(1+2)", () => expectParseToBe("(1+2)", "(add(1, 2))"))
})
describe("variables", () => {
Skip.test("define", () => expectParseToBe("x = 1", "???"))
Skip.test("use", () => expectParseToBe("x", "???"))
})
describe("functions", () => {
Skip.test("define", () => expectParseToBe("identity(x) = x", "???"))
Skip.test("use", () => expectParseToBe("identity(x)", "???"))
})
describe("arrays", () => {
test("empty", () => expectParseToBe("[]", "[]"))
test("define", () => expectParseToBe("[0, 1, 2]", "[0, 1, 2]"))
test("define with strings", () => expectParseToBe("['hello', 'world']", "['hello', 'world']"))
Skip.test("range", () => expectParseToBe("range(0, 4)", "range(0, 4)"))
test("index", () => expectParseToBe("([0,1,2])[1]", "([0, 1, 2])[1]"))
})
describe("records", () => {
test("define", () => expectParseToBe("{a: 1, b: 2}", "{a: 1, b: 2}"))
test("use", () => expectParseToBe("record.property", "record['property']"))
})
describe("comments", () => {
Skip.test("define", () => expectParseToBe("# This is a comment", "???"))
})
describe("if statement", () => {
Skip.test("define", () => expectParseToBe("if (true) { 1 } else { 0 }", "???"))
})
})

11
packages/squiggle-lang/__tests__/Reducer/Reducer_TestHelpers.res Normal file
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module Expression = Reducer.Expression
module ExpressionValue = ReducerInterface.ExpressionValue
open Jest
open Expect
let expectParseToBe = (expr: string, answer: string) =>
Reducer.parse(expr)->Expression.toStringResult->expect->toBe(answer)
let expectEvalToBe = (expr: string, answer: string) =>
Reducer.eval(expr)->ExpressionValue.toStringResult->expect->toBe(answer)

81
packages/squiggle-lang/__tests__/Reducer/Reducer_test.res Normal file
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open Jest
open Reducer_TestHelpers
describe("reducer using mathjs parse", () => {
// Test the MathJs parser compatibility
// Those tests toString that there is a semantic mapping from MathJs to Expression
// Reducer.parse is called by Reducer.eval
// See https://mathjs.org/docs/expressions/syntax.html
// See https://mathjs.org/docs/reference/functions.html
// Those tests toString that we are converting mathjs parse tree to what we need
describe("expressions", () => {
test("1", () => expectParseToBe("1", "Ok(1)"))
test("(1)", () => expectParseToBe("(1)", "Ok(1)"))
test("1+2", () => expectParseToBe("1+2", "Ok((:add 1 2))"))
test("(1+2)", () => expectParseToBe("1+2", "Ok((:add 1 2))"))
test("add(1,2)", () => expectParseToBe("1+2", "Ok((:add 1 2))"))
test("1+2*3", () => expectParseToBe("1+2*3", "Ok((:add 1 (:multiply 2 3)))"))
})
describe("arrays", () => {
//Note. () is a empty list in Lisp
// The only builtin structure in Lisp is list. There are no arrays
// [1,2,3] becomes (1 2 3)
test("empty", () => expectParseToBe("[]", "Ok(())"))
test("[1, 2, 3]", () => expectParseToBe("[1, 2, 3]", "Ok((1 2 3))"))
test("['hello', 'world']", () => expectParseToBe("['hello', 'world']", "Ok(('hello' 'world'))"))
test("index", () => expectParseToBe("([0,1,2])[1]", "Ok((:$atIndex (0 1 2) (1)))"))
})
describe("records", () => {
test("define", () =>
expectParseToBe("{a: 1, b: 2}", "Ok((:$constructRecord (('a' 1) ('b' 2))))")
)
test("use", () =>
expectParseToBe(
"{a: 1, b: 2}.a",
"Ok((:$atIndex (:$constructRecord (('a' 1) ('b' 2))) ('a')))",
)
)
})
})
describe("eval", () => {
// All MathJs operators and functions are builtin for string, float and boolean
// .e.g + - / * > >= < <= == /= not and or
// See https://mathjs.org/docs/expressions/syntax.html
// See https://mathjs.org/docs/reference/functions.html
describe("expressions", () => {
test("1", () => expectEvalToBe("1", "Ok(1)"))
test("1+2", () => expectEvalToBe("1+2", "Ok(3)"))
test("(1+2)*3", () => expectEvalToBe("(1+2)*3", "Ok(9)"))
test("2>1", () => expectEvalToBe("2>1", "Ok(true)"))
test("concat('a ', 'b')", () => expectEvalToBe("concat('a ', 'b')", "Ok('a b')"))
test("log(10)", () => expectEvalToBe("log(10)", "Ok(2.302585092994046)"))
test("cos(10)", () => expectEvalToBe("cos(10)", "Ok(-0.8390715290764524)"))
// TODO more built ins
})
describe("arrays", () => {
test("empty array", () => expectEvalToBe("[]", "Ok([])"))
test("[1, 2, 3]", () => expectEvalToBe("[1, 2, 3]", "Ok([1, 2, 3])"))
test("['hello', 'world']", () => expectEvalToBe("['hello', 'world']", "Ok(['hello', 'world'])"))
test("index", () => expectEvalToBe("([0,1,2])[1]", "Ok(1)"))
test("index not found", () =>
expectEvalToBe("([0,1,2])[10]", "Error(Array index not found: 10)")
)
})
describe("records", () => {
test("define", () => expectEvalToBe("{a: 1, b: 2}", "Ok({a: 1, b: 2})"))
test("index", () => expectEvalToBe("{a: 1}.a", "Ok(1)"))
test("index not found", () => expectEvalToBe("{a: 1}.b", "Error(Record property not found: b)"))
})
})
describe("test exceptions", () => {
test("javascript exception", () =>
expectEvalToBe("jsraise('div by 0')", "Error(JS Exception: Error: 'div by 0')")
)
test("rescript exception", () =>
expectEvalToBe("resraise()", "Error(TODO: unhandled rescript exception)")
)
})

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packages/squiggle-lang/__tests__/ReducerInterface/ReducerInterface_Distribution_test.res Normal file
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open Jest
let testSkip: (bool, string, unit => assertion) => unit = (skip: bool) =>
if skip {
Skip.test
} else {
test
}
let testEval = (~skip=false, str, result) =>
testSkip(skip)(str, () => Reducer_TestHelpers.expectEvalToBe(str, result))
let testParse = (~skip=false, str, result) =>
testSkip(skip)(str, () => Reducer_TestHelpers.expectParseToBe(str, result))
describe("eval on distribution functions", () => {
describe("normal distribution", () => {
testEval("normal(5,2)", "Ok(Normal(5,2))")
})
describe("lognormal distribution", () => {
testEval("lognormal(5,2)", "Ok(Lognormal(5,2))")
})
describe("unaryMinus", () => {
testEval("mean(-normal(5,2))", "Ok(-5.002887370380851)")
})
describe("to", () => {
testEval("5 to 2", "Error(TODO: Low value must be less than high value.)")
testEval("to(2,5)", "Ok(Lognormal(1.1512925464970227,0.278507821238345))")
testEval("to(-2,2)", "Ok(Normal(0,1.215913388057542))")
})
describe("mean", () => {
testEval("mean(normal(5,2))", "Ok(5)")
testEval("mean(lognormal(1,2))", "Ok(20.085536923187668)")
})
describe("toString", () => {
testEval("toString(normal(5,2))", "Ok('Normal(5,2)')")
})
describe("normalize", () => {
testEval("normalize(normal(5,2))", "Ok(Normal(5,2))")
})
describe("toPointSet", () => {
testEval("toPointSet(normal(5,2))", "Ok(Point Set Distribution)")
})
describe("toSampleSet", () => {
testEval("toSampleSet(normal(5,2), 100)", "Ok(Sample Set Distribution)")
})
describe("add", () => {
testEval("add(normal(5,2), normal(10,2))", "Ok(Normal(15,2.8284271247461903))")
testEval("add(normal(5,2), lognormal(10,2))", "Ok(Sample Set Distribution)")
testEval("add(normal(5,2), 3)", "Ok(Point Set Distribution)")
testEval("add(3, normal(5,2))", "Ok(Point Set Distribution)")
testEval("3+normal(5,2)", "Ok(Point Set Distribution)")
testEval("normal(5,2)+3", "Ok(Point Set Distribution)")
})
describe("truncate", () => {
testEval("truncateLeft(normal(5,2), 3)", "Ok(Point Set Distribution)")
testEval("truncateRight(normal(5,2), 3)", "Ok(Point Set Distribution)")
testEval("truncate(normal(5,2), 3, 8)", "Ok(Point Set Distribution)")
})
describe("exp", () => {
testEval("exp(normal(5,2))", "Ok(Point Set Distribution)")
})
describe("pow", () => {
testEval("pow(3, uniform(5,8))", "Ok(Point Set Distribution)")
testEval("pow(uniform(5,8), 3)", "Ok(Point Set Distribution)")
testEval("pow(uniform(5,8), uniform(9, 10))", "Ok(Sample Set Distribution)")
})
describe("log", () => {
testEval("log(2, uniform(5,8))", "Ok(Point Set Distribution)")
testEval("log(normal(5,2), 3)", "Ok(Point Set Distribution)")
testEval("log(normal(5,2), normal(10,1))", "Ok(Sample Set Distribution)")
testEval("log(uniform(5,8))", "Ok(Point Set Distribution)")
testEval("log10(uniform(5,8))", "Ok(Point Set Distribution)")
})
describe("dotLog", () => {
testEval("dotLog(normal(5,2), 3)", "Ok(Point Set Distribution)")
testEval("dotLog(normal(5,2), 3)", "Ok(Point Set Distribution)")
testEval("dotLog(normal(5,2), normal(10,1))", "Ok(Point Set Distribution)")
})
describe("dotAdd", () => {
testEval("dotAdd(normal(5,2), lognormal(10,2))", "Ok(Point Set Distribution)")
testEval("dotAdd(normal(5,2), 3)", "Ok(Point Set Distribution)")
})
describe("equality", () => {
testEval(~skip=true, "normal(5,2) == normal(5,2)", "Ok(true)")
})
describe("mixture", () => {
testEval(
~skip=true,
"mx(normal(5,2), normal(10,1), normal(15, 1))",
"Ok(Point Set Distribution)",
)
testEval(
~skip=true,
"mixture(normal(5,2), normal(10,1), [.2,, .4])",
"Ok(Point Set Distribution)",
)
})
})
describe("parse on distribution functions", () => {
describe("power", () => {
testParse("normal(5,2) ^ normal(5,1)", "Ok((:pow (:normal 5 2) (:normal 5 1)))")
testParse("3 ^ normal(5,1)", "Ok((:pow 3 (:normal 5 1)))")
testParse("normal(5,2) ^ 3", "Ok((:pow (:normal 5 2) 3))")
})
describe("pointwise arithmetic expressions", () => {
testParse(~skip=true, "normal(5,2) .+ normal(5,1)", "Ok((:dotAdd (:normal 5 2) (:normal 5 1)))")
testParse(~skip=true, "normal(5,2) .- normal(5,1)", "Ok((:dotSubtract (:normal 5 2) (:normal 5 1)))")
testParse("normal(5,2) .* normal(5,1)", "Ok((:dotMultiply (:normal 5 2) (:normal 5 1)))")
testParse("normal(5,2) ./ normal(5,1)", "Ok((:dotDivide (:normal 5 2) (:normal 5 1)))")
testParse("normal(5,2) .^ normal(5,1)", "Ok((:dotPow (:normal 5 2) (:normal 5 1)))")
})
describe("equality", () => {
testParse("5 == normal(5,2)", "Ok((:equal 5 (:normal 5 2)))")
})
describe("pointwise adding two normals", () => {
testParse(~skip=true, "normal(5,2) .+ normal(5,1)", "Ok((:dotAdd (:normal 5 2) (:normal 5 1)))")
})
describe("exponential of one distribution", () => {
testParse(~skip=true, "exp(normal(5,2)", "Ok((:pow (:normal 5 2) 3))")
})
})

11
packages/squiggle-lang/__tests__/ReducerInterface/ReducerInterface_ExpressionValue_test.res Normal file
View File

@ -0,0 +1,11 @@
open ReducerInterface.ExpressionValue
open Jest
open Expect
describe("ExpressionValue", () => {
test("argsToString", () => expect([EvNumber(1.), EvString("a")]->argsToString)->toBe("1, 'a'"))
test("toStringFunctionCall", () =>
expect(("fn", [EvNumber(1.), EvString("a")])->toStringFunctionCall)->toBe("fn(1, 'a')")
)
})

47
packages/squiggle-lang/__tests__/Samples__test.res
View File

@ -1,47 +0,0 @@
open Jest
open Expect
let makeTest = (~only=false, str, item1, item2) =>
only
? Only.test(str, () => expect(item1) -> toEqual(item2))
: test(str, () => expect(item1) -> toEqual(item2))
describe("Lodash", () =>
describe("Lodash", () => {
makeTest(
"split",
SampleSet.Internals.T.splitContinuousAndDiscrete([1.432, 1.33455, 2.0]),
([1.432, 1.33455, 2.0], E.FloatFloatMap.empty()),
)
makeTest(
"split",
SampleSet.Internals.T.splitContinuousAndDiscrete([
1.432,
1.33455,
2.0,
2.0,
2.0,
2.0,
]) |> (((c, disc)) => (c, disc |> E.FloatFloatMap.toArray)),
([1.432, 1.33455], [(2.0, 4.0)]),
)
let makeDuplicatedArray = count => {
let arr = Belt.Array.range(1, count) |> E.A.fmap(float_of_int)
let sorted = arr |> Belt.SortArray.stableSortBy(_, compare)
E.A.concatMany([sorted, sorted, sorted, sorted]) |> Belt.SortArray.stableSortBy(_, compare)
}
let (_, discrete) = SampleSet.Internals.T.splitContinuousAndDiscrete(
makeDuplicatedArray(10),
)
let toArr = discrete |> E.FloatFloatMap.toArray
makeTest("splitMedium", toArr |> Belt.Array.length, 10)
let (_c, discrete) = SampleSet.Internals.T.splitContinuousAndDiscrete(
makeDuplicatedArray(500),
)
let toArr = discrete |> E.FloatFloatMap.toArray
makeTest("splitMedium", toArr |> Belt.Array.length, 500)
})
)

26
packages/squiggle-lang/__tests__/TestHelpers.res Normal file
View File

@ -0,0 +1,26 @@
open Jest
open Expect
let makeTest = (~only=false, str, item1, item2) =>
only
? Only.test(str, () => expect(item1) -> toEqual(item2))
: test(str, () => expect(item1) -> toEqual(item2))
let {toFloat, toDist, toString, toError, fmap} = module(DistributionOperation.Output)
let fnImage = (theFn, inps) => Js.Array.map(theFn, inps)
let env: DistributionOperation.env = {
sampleCount: 100,
xyPointLength: 100,
}
let run = DistributionOperation.run(~env)
let outputMap = fmap(~env)
let unreachableInTestFileMessage = "Should be impossible to reach (This error is in test file)"
let toExtFloat: option<float> => float = E.O.toExt(unreachableInTestFileMessage)
let toExtDist: option<GenericDist_Types.genericDist> => GenericDist_Types.genericDist = E.O.toExt(unreachableInTestFileMessage)
// let toExt: option<'a> => 'a = E.O.toExt(unreachableInTestFileMessage)
let unpackFloat = x => x -> toFloat -> toExtFloat
let unpackDist = y => y -> toDist -> toExtDist

0
packages/squiggle-lang/__tests__/XYShape__Test.res → packages/squiggle-lang/__tests__/XYShape_test.res
View File

18
packages/squiggle-lang/bsconfig.json
View File

@ -1,9 +1,8 @@
{
"name": "@quri/squiggle-lang",
"reason": {},
"sources": [
{
"dir": "src",
"dir": "src/rescript",
"subdirs": true
},
{
@ -28,12 +27,13 @@
"bs-dependencies": [
"@glennsl/rescript-jest",
"@glennsl/bs-json",
"rationale"
"rationale",
"bisect_ppx"
],
"gentypeconfig": {
"language": "typescript",
"module": "commonjs",
"shims": {},
"shims": {"Js": "Js"},
"debug": {
"all": false,
"basic": false
@ -41,7 +41,13 @@
},
"refmt": 3,
"warnings": {
"number": "+A-42-48-9-30-4-102"
"number": "+A-42-48-9-30-4-102-20-27-41"
},
"ppx-flags": []
"ppx-flags": [
[
"../../node_modules/bisect_ppx/ppx",
"--exclude-files",
".*_test\\.res$$"
]
]
}

12
packages/squiggle-lang/jest.config.js
View File

@ -1,5 +1,13 @@
/** @type {import('ts-jest/dist/types').InitialOptionsTsJest} */
module.exports = {
preset: 'ts-jest',
testEnvironment: 'node',
preset: "ts-jest",
testEnvironment: "node",
setupFilesAfterEnv: [
"<rootdir>/../../node_modules/bisect_ppx/src/runtime/js/jest.bs.js",
],
testPathIgnorePatterns: [
".*Fixtures.bs.js",
"/node_modules/",
".*Helpers.bs.js",
],
};

6
packages/squiggle-lang/package.json
View File

@ -7,8 +7,10 @@
"bundle": "webpack",
"start": "rescript build -w -with-deps",
"clean": "rescript clean",
"test:reducer": "jest --testPathPattern '.*__tests__/Reducer.*'",
"test": "jest",
"test:watch": "jest --watchAll",
"coverage": "rm -f *.coverage; yarn clean; BISECT_ENABLE=yes yarn build; yarn test; bisect-ppx-report html",
"all": "yarn build && yarn bundle && yarn test"
},
"keywords": [
@ -23,12 +25,12 @@
"mathjs": "10.4.3",
"pdfast": "^0.2.0",
"rationale": "0.2.0",
"rescript": "^9.1.4"
"rescript": "^9.1.4",
"bisect_ppx": "^2.7.1"
},
"devDependencies": {
"@glennsl/rescript-jest": "^0.9.0",
"@types/jest": "^27.4.0",
"@types/webpack": "^5.28.0",
"babel-plugin-transform-es2015-modules-commonjs": "^6.26.2",
"docsify": "^4.12.2",
"gentype": "^4.3.0",

231
packages/squiggle-lang/src/js/index.ts
View File

@ -1,17 +1,228 @@
import {runAll} from '../rescript/ProgramEvaluator.gen';
import type { Inputs_SamplingInputs_t as SamplingInputs, exportEnv, exportType, exportDistribution} from '../rescript/ProgramEvaluator.gen';
export type { SamplingInputs, exportEnv, exportDistribution }
export type {t as DistPlus} from '../rescript/pointSetDist/DistPlus.gen';
import { runAll } from "../rescript/ProgramEvaluator.gen";
import type {
Inputs_SamplingInputs_t as SamplingInputs,
exportEnv,
exportType,
exportDistribution,
} from "../rescript/ProgramEvaluator.gen";
export type { SamplingInputs, exportEnv, exportDistribution };
export type { t as DistPlus } from "../rescript/OldInterpreter/DistPlus.gen";
import {
genericDist,
env,
resultDist,
resultFloat,
resultString,
} from "../rescript/TypescriptInterface.gen";
export {makeSampleSetDist} from "../rescript/TypescriptInterface.gen";
import {
Constructors_mean,
Constructors_sample,
Constructors_pdf,
Constructors_cdf,
Constructors_inv,
Constructors_normalize,
Constructors_toPointSet,
Constructors_toSampleSet,
Constructors_truncate,
Constructors_inspect,
Constructors_toString,
Constructors_toSparkline,
Constructors_algebraicAdd,
Constructors_algebraicMultiply,
Constructors_algebraicDivide,
Constructors_algebraicSubtract,
Constructors_algebraicLogarithm,
Constructors_algebraicPower,
Constructors_pointwiseAdd,
Constructors_pointwiseMultiply,
Constructors_pointwiseDivide,
Constructors_pointwiseSubtract,
Constructors_pointwiseLogarithm,
Constructors_pointwisePower,
} from "../rescript/Distributions/DistributionOperation/DistributionOperation.gen";
export let defaultSamplingInputs: SamplingInputs = {
sampleCount: 10000,
outputXYPoints: 10000,
pointDistLength : 1000
pointDistLength: 1000,
};
export function run(
squiggleString: string,
samplingInputs?: SamplingInputs,
environment?: exportEnv
): { tag: "Ok"; value: exportType } | { tag: "Error"; value: string } {
let si: SamplingInputs = samplingInputs
? samplingInputs
: defaultSamplingInputs;
let env: exportEnv = environment ? environment : [];
return runAll(squiggleString, si, env);
}
export function run(squiggleString : string, samplingInputs? : SamplingInputs, environment?: exportEnv) : { tag: "Ok"; value: exportType }
| { tag: "Error"; value: string } {
let si : SamplingInputs = samplingInputs ? samplingInputs : defaultSamplingInputs
let env : exportEnv = environment ? environment : []
return runAll(squiggleString, si, env)
//This is clearly not fully typed. I think later we should use a functional library to
// provide a better Either type and corresponding functions.
type result =
| {
tag: "Ok";
value: any;
}
| {
tag: "Error";
value: any;
};
export function resultMap(r: result, mapFn: any): result {
if (r.tag === "Ok") {
return { tag: "Ok", value: mapFn(r.value) };
} else {
return r;
}
}
export function resultExn(r: result): any {
r.value
}
export class GenericDist {
t: genericDist;
env: env;
constructor(t: genericDist, env: env) {
this.t = t;
this.env = env;
return this;
}
mapResultDist(r: resultDist) {
return resultMap(r, (v: genericDist) => new GenericDist(v, this.env));
}
mean() {
return Constructors_mean({ env: this.env }, this.t);
}
sample(): resultFloat {
return Constructors_sample({ env: this.env }, this.t);
}
pdf(n: number): resultFloat {
return Constructors_pdf({ env: this.env }, this.t, n);
}
cdf(n: number): resultFloat {
return Constructors_cdf({ env: this.env }, this.t, n);
}
inv(n: number): resultFloat {
return Constructors_inv({ env: this.env }, this.t, n);
}
normalize() {
return this.mapResultDist(
Constructors_normalize({ env: this.env }, this.t)
);
}
toPointSet() {
return this.mapResultDist(
Constructors_toPointSet({ env: this.env }, this.t)
);
}
toSampleSet(n: number) {
return this.mapResultDist(
Constructors_toSampleSet({ env: this.env }, this.t, n)
);
}
truncate(left: number, right: number) {
return this.mapResultDist(
Constructors_truncate({ env: this.env }, this.t, left, right)
);
}
inspect() {
return this.mapResultDist(Constructors_inspect({ env: this.env }, this.t));
}
toString(): resultString {
return Constructors_toString({ env: this.env }, this.t);
}
toSparkline(n: number): resultString {
return Constructors_toSparkline({ env: this.env }, this.t, n);
}
algebraicAdd(d2: GenericDist) {
return this.mapResultDist(
Constructors_algebraicAdd({ env: this.env }, this.t, d2.t)
);
}
algebraicMultiply(d2: GenericDist) {
return this.mapResultDist(
Constructors_algebraicMultiply({ env: this.env }, this.t, d2.t)
);
}
algebraicDivide(d2: GenericDist) {
return this.mapResultDist(
Constructors_algebraicDivide({ env: this.env }, this.t, d2.t)
);
}
algebraicSubtract(d2: GenericDist) {
return this.mapResultDist(
Constructors_algebraicSubtract({ env: this.env }, this.t, d2.t)
);
}
algebraicLogarithm(d2: GenericDist) {
return this.mapResultDist(
Constructors_algebraicLogarithm({ env: this.env }, this.t, d2.t)
);
}
algebraicPower(d2: GenericDist) {
return this.mapResultDist(
Constructors_algebraicPower({ env: this.env }, this.t, d2.t)
);
}
pointwiseAdd(d2: GenericDist) {
return this.mapResultDist(
Constructors_pointwiseAdd({ env: this.env }, this.t, d2.t)
);
}
pointwiseMultiply(d2: GenericDist) {
return this.mapResultDist(
Constructors_pointwiseMultiply({ env: this.env }, this.t, d2.t)
);
}
pointwiseDivide(d2: GenericDist) {
return this.mapResultDist(
Constructors_pointwiseDivide({ env: this.env }, this.t, d2.t)
);
}
pointwiseSubtract(d2: GenericDist) {
return this.mapResultDist(
Constructors_pointwiseSubtract({ env: this.env }, this.t, d2.t)
);
}
pointwiseLogarithm(d2: GenericDist) {
return this.mapResultDist(
Constructors_pointwiseLogarithm({ env: this.env }, this.t, d2.t)
);
}
pointwisePower(d2: GenericDist) {
return this.mapResultDist(
Constructors_pointwisePower({ env: this.env }, this.t, d2.t)
);
}
}

230
packages/squiggle-lang/src/rescript/Distributions/DistributionOperation/DistributionOperation.res Normal file
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@ -0,0 +1,230 @@
type functionCallInfo = GenericDist_Types.Operation.genericFunctionCallInfo
type genericDist = GenericDist_Types.genericDist
type error = GenericDist_Types.error
// TODO: It could be great to use a cache for some calculations (basically, do memoization). Also, better analytics/tracking could go a long way.
type env = {
sampleCount: int,
xyPointLength: int,
}
type outputType =
| Dist(genericDist)
| Float(float)
| String(string)
| GenDistError(error)
/*
We're going to add another function to this module later, so first define a
local version, which is not exported.
*/
module OutputLocal = {
type t = outputType
let toError = (t: outputType) =>
switch t {
| GenDistError(d) => Some(d)
| _ => None
}
let toErrorOrUnreachable = (t: t): error => t->toError->E.O2.default((Unreachable: error))
let toDistR = (t: t): result<genericDist, error> =>
switch t {
| Dist(r) => Ok(r)
| e => Error(toErrorOrUnreachable(e))
}
let toDist = (t: t) =>
switch t {
| Dist(d) => Some(d)
| _ => None
}
let toFloat = (t: t) =>
switch t {
| Float(d) => Some(d)
| _ => None
}
let toFloatR = (t: t): result<float, error> =>
switch t {
| Float(r) => Ok(r)
| e => Error(toErrorOrUnreachable(e))
}
let toString = (t: t) =>
switch t {
| String(d) => Some(d)
| _ => None
}
let toStringR = (t: t): result<string, error> =>
switch t {
| String(r) => Ok(r)
| e => Error(toErrorOrUnreachable(e))
}
//This is used to catch errors in other switch statements.
let fromResult = (r: result<t, error>): outputType =>
switch r {
| Ok(t) => t
| Error(e) => GenDistError(e)
}
}
let rec run = (~env, functionCallInfo: functionCallInfo): outputType => {
let {sampleCount, xyPointLength} = env
let reCall = (~env=env, ~functionCallInfo=functionCallInfo, ()) => {
run(~env, functionCallInfo)
}
let toPointSetFn = r => {
switch reCall(~functionCallInfo=FromDist(ToDist(ToPointSet), r), ()) {
| Dist(PointSet(p)) => Ok(p)
| e => Error(OutputLocal.toErrorOrUnreachable(e))
}
}
let toSampleSetFn = r => {
switch reCall(~functionCallInfo=FromDist(ToDist(ToSampleSet(sampleCount)), r), ()) {
| Dist(SampleSet(p)) => Ok(p)
| e => Error(OutputLocal.toErrorOrUnreachable(e))
}
}
let scaleMultiply = (r, weight) =>
reCall(
~functionCallInfo=FromDist(ToDistCombination(Pointwise, #Multiply, #Float(weight)), r),
(),
)->OutputLocal.toDistR
let pointwiseAdd = (r1, r2) =>
reCall(
~functionCallInfo=FromDist(ToDistCombination(Pointwise, #Add, #Dist(r2)), r1),
(),
)->OutputLocal.toDistR
let fromDistFn = (subFnName: GenericDist_Types.Operation.fromDist, dist: genericDist) =>
switch subFnName {
| ToFloat(distToFloatOperation) =>
GenericDist.toFloatOperation(dist, ~toPointSetFn, ~distToFloatOperation)
->E.R2.fmap(r => Float(r))
->OutputLocal.fromResult
| ToString(ToString) => dist->GenericDist.toString->String
| ToString(ToSparkline(bucketCount)) =>
GenericDist.toSparkline(dist, ~sampleCount, ~bucketCount, ())
->E.R2.fmap(r => String(r))
->OutputLocal.fromResult
| ToDist(Inspect) => {
Js.log2("Console log requested: ", dist)
Dist(dist)
}
| ToDist(Normalize) => dist->GenericDist.normalize->Dist
| ToDist(Truncate(leftCutoff, rightCutoff)) =>
GenericDist.truncate(~toPointSetFn, ~leftCutoff, ~rightCutoff, dist, ())
->E.R2.fmap(r => Dist(r))
->OutputLocal.fromResult
| ToDist(ToSampleSet(n)) =>
dist
->GenericDist.toSampleSetDist(n)
->E.R2.fmap(r => Dist(SampleSet(r)))
->OutputLocal.fromResult
| ToDist(ToPointSet) =>
dist
->GenericDist.toPointSet(~xyPointLength, ~sampleCount, ())
->E.R2.fmap(r => Dist(PointSet(r)))
->OutputLocal.fromResult
| ToDistCombination(Algebraic, _, #Float(_)) => GenDistError(NotYetImplemented)
| ToDistCombination(Algebraic, arithmeticOperation, #Dist(t2)) =>
dist
->GenericDist.algebraicCombination(~toPointSetFn, ~toSampleSetFn, ~arithmeticOperation, ~t2)
->E.R2.fmap(r => Dist(r))
->OutputLocal.fromResult
| ToDistCombination(Pointwise, arithmeticOperation, #Dist(t2)) =>
dist
->GenericDist.pointwiseCombination(~toPointSetFn, ~arithmeticOperation, ~t2)
->E.R2.fmap(r => Dist(r))
->OutputLocal.fromResult
| ToDistCombination(Pointwise, arithmeticOperation, #Float(float)) =>
dist
->GenericDist.pointwiseCombinationFloat(~toPointSetFn, ~arithmeticOperation, ~float)
->E.R2.fmap(r => Dist(r))
->OutputLocal.fromResult
}
switch functionCallInfo {
| FromDist(subFnName, dist) => fromDistFn(subFnName, dist)
| FromFloat(subFnName, float) =>
reCall(~functionCallInfo=FromDist(subFnName, GenericDist.fromFloat(float)), ())
| Mixture(dists) =>
dists
->GenericDist.mixture(~scaleMultiplyFn=scaleMultiply, ~pointwiseAddFn=pointwiseAdd)
->E.R2.fmap(r => Dist(r))
->OutputLocal.fromResult
}
}
let runFromDist = (~env, ~functionCallInfo, dist) => run(~env, FromDist(functionCallInfo, dist))
let runFromFloat = (~env, ~functionCallInfo, float) => run(~env, FromFloat(functionCallInfo, float))
module Output = {
include OutputLocal
let fmap = (
~env,
input: outputType,
functionCallInfo: GenericDist_Types.Operation.singleParamaterFunction,
): outputType => {
let newFnCall: result<functionCallInfo, error> = switch (functionCallInfo, input) {
| (FromDist(fromDist), Dist(o)) => Ok(FromDist(fromDist, o))
| (FromFloat(fromDist), Float(o)) => Ok(FromFloat(fromDist, o))
| (_, GenDistError(r)) => Error(r)
| (FromDist(_), _) => Error(Other("Expected dist, got something else"))
| (FromFloat(_), _) => Error(Other("Expected float, got something else"))
}
newFnCall->E.R2.fmap(run(~env))->OutputLocal.fromResult
}
}
// See comment above GenericDist_Types.Constructors to explain the purpose of this module.
// I tried having another internal module called UsingDists, similar to how its done in
// GenericDist_Types.Constructors. However, this broke GenType for me, so beware.
module Constructors = {
module C = GenericDist_Types.Constructors.UsingDists
open OutputLocal
let mean = (~env, dist) => C.mean(dist)->run(~env)->toFloatR
let sample = (~env, dist) => C.sample(dist)->run(~env)->toFloatR
let cdf = (~env, dist, f) => C.cdf(dist, f)->run(~env)->toFloatR
let inv = (~env, dist, f) => C.inv(dist, f)->run(~env)->toFloatR
let pdf = (~env, dist, f) => C.pdf(dist, f)->run(~env)->toFloatR
let normalize = (~env, dist) => C.normalize(dist)->run(~env)->toDistR
let toPointSet = (~env, dist) => C.toPointSet(dist)->run(~env)->toDistR
let toSampleSet = (~env, dist, n) => C.toSampleSet(dist, n)->run(~env)->toDistR
let truncate = (~env, dist, leftCutoff, rightCutoff) =>
C.truncate(dist, leftCutoff, rightCutoff)->run(~env)->toDistR
let inspect = (~env, dist) => C.inspect(dist)->run(~env)->toDistR
let toString = (~env, dist) => C.toString(dist)->run(~env)->toStringR
let toSparkline = (~env, dist, bucketCount) =>
C.toSparkline(dist, bucketCount)->run(~env)->toStringR
let algebraicAdd = (~env, dist1, dist2) => C.algebraicAdd(dist1, dist2)->run(~env)->toDistR
let algebraicMultiply = (~env, dist1, dist2) =>
C.algebraicMultiply(dist1, dist2)->run(~env)->toDistR
let algebraicDivide = (~env, dist1, dist2) => C.algebraicDivide(dist1, dist2)->run(~env)->toDistR
let algebraicSubtract = (~env, dist1, dist2) =>
C.algebraicSubtract(dist1, dist2)->run(~env)->toDistR
let algebraicLogarithm = (~env, dist1, dist2) =>
C.algebraicLogarithm(dist1, dist2)->run(~env)->toDistR
let algebraicPower = (~env, dist1, dist2) => C.algebraicPower(dist1, dist2)->run(~env)->toDistR
let pointwiseAdd = (~env, dist1, dist2) => C.pointwiseAdd(dist1, dist2)->run(~env)->toDistR
let pointwiseMultiply = (~env, dist1, dist2) =>
C.pointwiseMultiply(dist1, dist2)->run(~env)->toDistR
let pointwiseDivide = (~env, dist1, dist2) => C.pointwiseDivide(dist1, dist2)->run(~env)->toDistR
let pointwiseSubtract = (~env, dist1, dist2) =>
C.pointwiseSubtract(dist1, dist2)->run(~env)->toDistR
let pointwiseLogarithm = (~env, dist1, dist2) =>
C.pointwiseLogarithm(dist1, dist2)->run(~env)->toDistR
let pointwisePower = (~env, dist1, dist2) => C.pointwisePower(dist1, dist2)->run(~env)->toDistR
}

95
packages/squiggle-lang/src/rescript/Distributions/DistributionOperation/DistributionOperation.resi Normal file
View File

@ -0,0 +1,95 @@
@genType
type env = {
sampleCount: int,
xyPointLength: int,
}
open GenericDist_Types
@genType
type outputType =
| Dist(genericDist)
| Float(float)
| String(string)
| GenDistError(error)
@genType
let run: (~env: env, GenericDist_Types.Operation.genericFunctionCallInfo) => outputType
let runFromDist: (
~env: env,
~functionCallInfo: GenericDist_Types.Operation.fromDist,
genericDist,
) => outputType
let runFromFloat: (
~env: env,
~functionCallInfo: GenericDist_Types.Operation.fromDist,
float,
) => outputType
module Output: {
type t = outputType
let toDist: t => option<genericDist>
let toDistR: t => result<genericDist, error>
let toFloat: t => option<float>
let toFloatR: t => result<float, error>
let toString: t => option<string>
let toStringR: t => result<string, error>
let toError: t => option<error>
let fmap: (~env: env, t, GenericDist_Types.Operation.singleParamaterFunction) => t
}
module Constructors: {
@genType
let mean: (~env: env, genericDist) => result<float, error>
@genType
let sample: (~env: env, genericDist) => result<float, error>
@genType
let cdf: (~env: env, genericDist, float) => result<float, error>
@genType
let inv: (~env: env, genericDist, float) => result<float, error>
@genType
let pdf: (~env: env, genericDist, float) => result<float, error>
@genType
let normalize: (~env: env, genericDist) => result<genericDist, error>
@genType
let toPointSet: (~env: env, genericDist) => result<genericDist, error>
@genType
let toSampleSet: (~env: env, genericDist, int) => result<genericDist, error>
@genType
let truncate: (
~env: env,
genericDist,
option<float>,
option<float>,
) => result<genericDist, error>
@genType
let inspect: (~env: env, genericDist) => result<genericDist, error>
@genType
let toString: (~env: env, genericDist) => result<string, error>
@genType
let toSparkline: (~env: env, genericDist, int) => result<string, error>
@genType
let algebraicAdd: (~env: env, genericDist, genericDist) => result<genericDist, error>
@genType
let algebraicMultiply: (~env: env, genericDist, genericDist) => result<genericDist, error>
@genType
let algebraicDivide: (~env: env, genericDist, genericDist) => result<genericDist, error>
@genType
let algebraicSubtract: (~env: env, genericDist, genericDist) => result<genericDist, error>
@genType
let algebraicLogarithm: (~env: env, genericDist, genericDist) => result<genericDist, error>
@genType
let algebraicPower: (~env: env, genericDist, genericDist) => result<genericDist, error>
@genType
let pointwiseAdd: (~env: env, genericDist, genericDist) => result<genericDist, error>
@genType
let pointwiseMultiply: (~env: env, genericDist, genericDist) => result<genericDist, error>
@genType
let pointwiseDivide: (~env: env, genericDist, genericDist) => result<genericDist, error>
@genType
let pointwiseSubtract: (~env: env, genericDist, genericDist) => result<genericDist, error>
@genType
let pointwiseLogarithm: (~env: env, genericDist, genericDist) => result<genericDist, error>
@genType
let pointwisePower: (~env: env, genericDist, genericDist) => result<genericDist, error>
}

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type genericDist =
| PointSet(PointSetTypes.pointSetDist)
| SampleSet(array<float>)
| Symbolic(SymbolicDistTypes.symbolicDist)
type error =
| NotYetImplemented
| Unreachable
| DistributionVerticalShiftIsInvalid
| Other(string)
module Operation = {
type direction =
| Algebraic
| Pointwise
type arithmeticOperation = [
| #Add
| #Multiply
| #Subtract
| #Divide
| #Power
| #Logarithm
]
let arithmeticToFn = (arithmetic: arithmeticOperation) =>
switch arithmetic {
| #Add => \"+."
| #Multiply => \"*."
| #Subtract => \"-."
| #Power => \"**"
| #Divide => \"/."
| #Logarithm => (a, b) => log(a) /. log(b)
}
type toFloat = [
| #Cdf(float)
| #Inv(float)
| #Pdf(float)
| #Mean
| #Sample
]
}
module DistributionOperation = {
type toDist =
| Normalize
| ToPointSet
| ToSampleSet(int)
| Truncate(option<float>, option<float>)
| Inspect
type toFloatArray = Sample(int)
type fromDist =
| ToFloat(Operation.toFloat)
| ToDist(toDist)
| ToDistCombination(Operation.direction, Operation.arithmeticOperation, [#Dist(genericDist) | #Float(float)])
| ToString
type singleParamaterFunction =
| FromDist(fromDist)
| FromFloat(fromDist)
type genericFunctionCallInfo =
| FromDist(fromDist, genericDist)
| FromFloat(fromDist, float)
| Mixture(array<(genericDist, float)>)
let distCallToString = (distFunction: fromDist): string =>
switch distFunction {
| ToFloat(#Cdf(r)) => `cdf(${E.Float.toFixed(r)})`
| ToFloat(#Inv(r)) => `inv(${E.Float.toFixed(r)})`
| ToFloat(#Mean) => `mean`
| ToFloat(#Pdf(r)) => `pdf(${E.Float.toFixed(r)})`
| ToFloat(#Sample) => `sample`
| ToDist(Normalize) => `normalize`
| ToDist(ToPointSet) => `toPointSet`
| ToDist(ToSampleSet(r)) => `toSampleSet(${E.I.toString(r)})`
| ToDist(Truncate(_, _)) => `truncate`
| ToDist(Inspect) => `inspect`
| ToString => `toString`
| ToDistCombination(Algebraic, _, _) => `algebraic`
| ToDistCombination(Pointwise, _, _) => `pointwise`
}
let toString = (d: genericFunctionCallInfo): string =>
switch d {
| FromDist(f, _) | FromFloat(f, _) => distCallToString(f)
| Mixture(_) => `mixture`
}
}

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//TODO: multimodal, add interface, test somehow, track performance, refactor sampleSet, refactor ASTEvaluator.res.
type t = GenericDist_Types.genericDist
type error = GenericDist_Types.error
type toPointSetFn = t => result<PointSetTypes.pointSetDist, error>
type toSampleSetFn = t => result<SampleSetDist.t, error>
type scaleMultiplyFn = (t, float) => result<t, error>
type pointwiseAddFn = (t, t) => result<t, error>
let sampleN = (t: t, n) =>
switch t {
| PointSet(r) => PointSetDist.sampleNRendered(n, r)
| Symbolic(r) => SymbolicDist.T.sampleN(n, r)
| SampleSet(r) => SampleSetDist.sampleN(r, n)
}
let toSampleSetDist = (t: t, n) =>
SampleSetDist.make(sampleN(t, n))->GenericDist_Types.Error.resultStringToResultError
let fromFloat = (f: float): t => Symbolic(SymbolicDist.Float.make(f))
let toString = (t: t) =>
switch t {
| PointSet(_) => "Point Set Distribution"
| Symbolic(r) => SymbolicDist.T.toString(r)
| SampleSet(_) => "Sample Set Distribution"
}
let normalize = (t: t): t =>
switch t {
| PointSet(r) => PointSet(PointSetDist.T.normalize(r))
| Symbolic(_) => t
| SampleSet(_) => t
}
let toFloatOperation = (
t,
~toPointSetFn: toPointSetFn,
~distToFloatOperation: Operation.distToFloatOperation,
) => {
let symbolicSolution = switch (t: t) {
| Symbolic(r) =>
switch SymbolicDist.T.operate(distToFloatOperation, r) {
| Ok(f) => Some(f)
| _ => None
}
| _ => None
}
switch symbolicSolution {
| Some(r) => Ok(r)
| None => toPointSetFn(t)->E.R2.fmap(PointSetDist.operate(distToFloatOperation))
}
}
//Todo: If it's a pointSet, but the xyPointLength is different from what it has, it should change.
// This is tricky because the case of discrete distributions.
// Also, change the outputXYPoints/pointSetDistLength details
let toPointSet = (
t,
~xyPointLength,
~sampleCount,
~xSelection: GenericDist_Types.Operation.pointsetXSelection=#ByWeight,
unit,
): result<PointSetTypes.pointSetDist, error> => {
switch (t: t) {
| PointSet(pointSet) => Ok(pointSet)
| Symbolic(r) => Ok(SymbolicDist.T.toPointSetDist(~xSelection, xyPointLength, r))
| SampleSet(r) =>
SampleSetDist.toPointSetDist(
~samples=r,
~samplingInputs={
sampleCount: sampleCount,
outputXYPoints: xyPointLength,
pointSetDistLength: xyPointLength,
kernelWidth: None,
},
)->GenericDist_Types.Error.resultStringToResultError
}
}
/*
PointSetDist.toSparkline calls "downsampleEquallyOverX", which downsamples it to n=bucketCount.
It first needs a pointSetDist, so we convert to a pointSetDist. In this process we want the
xyPointLength to be a bit longer than the eventual toSparkline downsampling. I chose 3
fairly arbitrarily.
*/
let toSparkline = (t: t, ~sampleCount: int, ~bucketCount: int=20, unit): result<string, error> =>
t
->toPointSet(~xSelection=#Linear, ~xyPointLength=bucketCount * 3, ~sampleCount, ())
->E.R.bind(r =>
r->PointSetDist.toSparkline(bucketCount)->GenericDist_Types.Error.resultStringToResultError
)
module Truncate = {
let trySymbolicSimplification = (leftCutoff, rightCutoff, t: t): option<t> =>
switch (leftCutoff, rightCutoff, t) {
| (None, None, _) => None
| (lc, rc, Symbolic(#Uniform(u))) if lc < rc =>
Some(Symbolic(#Uniform(SymbolicDist.Uniform.truncate(lc, rc, u))))
| _ => None
}
let run = (
t: t,
~toPointSetFn: toPointSetFn,
~leftCutoff=None: option<float>,
~rightCutoff=None: option<float>,
(),
): result<t, error> => {
let doesNotNeedCutoff = E.O.isNone(leftCutoff) && E.O.isNone(rightCutoff)
if doesNotNeedCutoff {
Ok(t)
} else {
switch trySymbolicSimplification(leftCutoff, rightCutoff, t) {
| Some(r) => Ok(r)
| None =>
toPointSetFn(t)->E.R2.fmap(t => {
GenericDist_Types.PointSet(PointSetDist.T.truncate(leftCutoff, rightCutoff, t))
})
}
}
}
}
let truncate = Truncate.run
/* Given two random variables A and B, this returns the distribution
of a new variable that is the result of the operation on A and B.
For instance, normal(0, 1) + normal(1, 1) -> normal(1, 2).
In general, this is implemented via convolution.
TODO: It would be useful to be able to pass in a paramater to get this to run either with convolution or monte carlo.
*/
module AlgebraicCombination = {
let tryAnalyticalSimplification = (
arithmeticOperation: GenericDist_Types.Operation.arithmeticOperation,
t1: t,
t2: t,
): option<result<SymbolicDistTypes.symbolicDist, string>> =>
switch (arithmeticOperation, t1, t2) {
| (arithmeticOperation, Symbolic(d1), Symbolic(d2)) =>
switch SymbolicDist.T.tryAnalyticalSimplification(d1, d2, arithmeticOperation) {
| #AnalyticalSolution(symbolicDist) => Some(Ok(symbolicDist))
| #Error(er) => Some(Error(er))
| #NoSolution => None
}
| _ => None
}
let runConvolution = (
toPointSet: toPointSetFn,
arithmeticOperation: GenericDist_Types.Operation.arithmeticOperation,
t1: t,
t2: t,
) =>
E.R.merge(toPointSet(t1), toPointSet(t2))->E.R2.fmap(((a, b)) =>
PointSetDist.combineAlgebraically(arithmeticOperation, a, b)
)
let runMonteCarlo = (
toSampleSet: toSampleSetFn,
arithmeticOperation: GenericDist_Types.Operation.arithmeticOperation,
t1: t,
t2: t,
) => {
let fn = Operation.Algebraic.toFn(arithmeticOperation)
E.R.merge(toSampleSet(t1), toSampleSet(t2))
->E.R.bind(((t1, t2)) => {
SampleSetDist.map2(~fn, ~t1, ~t2)->GenericDist_Types.Error.resultStringToResultError
})
->E.R2.fmap(r => GenericDist_Types.SampleSet(r))
}
//I'm (Ozzie) really just guessing here, very little idea what's best
let expectedConvolutionCost: t => int = x =>
switch x {
| Symbolic(#Float(_)) => 1
| Symbolic(_) => 1000
| PointSet(Discrete(m)) => m.xyShape->XYShape.T.length
| PointSet(Mixed(_)) => 1000
| PointSet(Continuous(_)) => 1000
| _ => 1000
}
let chooseConvolutionOrMonteCarlo = (t2: t, t1: t) =>
expectedConvolutionCost(t1) * expectedConvolutionCost(t2) > 10000
? #CalculateWithMonteCarlo
: #CalculateWithConvolution
let run = (
t1: t,
~toPointSetFn: toPointSetFn,
~toSampleSetFn: toSampleSetFn,
~arithmeticOperation,
~t2: t,
): result<t, error> => {
switch tryAnalyticalSimplification(arithmeticOperation, t1, t2) {
| Some(Ok(symbolicDist)) => Ok(Symbolic(symbolicDist))
| Some(Error(e)) => Error(Other(e))
| None =>
switch chooseConvolutionOrMonteCarlo(t1, t2) {
| #CalculateWithMonteCarlo => runMonteCarlo(toSampleSetFn, arithmeticOperation, t1, t2)
| #CalculateWithConvolution =>
runConvolution(
toPointSetFn,
arithmeticOperation,
t1,
t2,
)->E.R2.fmap(r => GenericDist_Types.PointSet(r))
}
}
}
}
let algebraicCombination = AlgebraicCombination.run
//TODO: Add faster pointwiseCombine fn
let pointwiseCombination = (
t1: t,
~toPointSetFn: toPointSetFn,
~arithmeticOperation,
~t2: t,
): result<t, error> => {
E.R.merge(toPointSetFn(t1), toPointSetFn(t2))
->E.R2.fmap(((t1, t2)) =>
PointSetDist.combinePointwise(
GenericDist_Types.Operation.arithmeticToFn(arithmeticOperation),
t1,
t2,
)
)
->E.R2.fmap(r => GenericDist_Types.PointSet(r))
}
let pointwiseCombinationFloat = (
t: t,
~toPointSetFn: toPointSetFn,
~arithmeticOperation: GenericDist_Types.Operation.arithmeticOperation,
~float: float,
): result<t, error> => {
let m = switch arithmeticOperation {
| #Add | #Subtract => Error(GenericDist_Types.DistributionVerticalShiftIsInvalid)
| (#Multiply | #Divide | #Power | #Logarithm) as arithmeticOperation =>
toPointSetFn(t)->E.R2.fmap(t => {
//TODO: Move to PointSet codebase
let fn = (secondary, main) => Operation.Scale.toFn(arithmeticOperation, main, secondary)
let integralSumCacheFn = Operation.Scale.toIntegralSumCacheFn(arithmeticOperation)
let integralCacheFn = Operation.Scale.toIntegralCacheFn(arithmeticOperation)
PointSetDist.T.mapY(
~integralSumCacheFn=integralSumCacheFn(float),
~integralCacheFn=integralCacheFn(float),
~fn=fn(float),
t,
)
})
}
m->E.R2.fmap(r => GenericDist_Types.PointSet(r))
}
//Note: The result should always cumulatively sum to 1. This would be good to test.
//Note: If the inputs are not normalized, this will return poor results. The weights probably refer to the post-normalized forms. It would be good to apply a catch to this.
let mixture = (
values: array<(t, float)>,
~scaleMultiplyFn: scaleMultiplyFn,
~pointwiseAddFn: pointwiseAddFn,
) => {
if E.A.length(values) == 0 {
Error(GenericDist_Types.Other("Mixture error: mixture must have at least 1 element"))
} else {
let totalWeight = values->E.A2.fmap(E.Tuple2.second)->E.A.Floats.sum
let properlyWeightedValues =
values
->E.A2.fmap(((dist, weight)) => scaleMultiplyFn(dist, weight /. totalWeight))
->E.A.R.firstErrorOrOpen
properlyWeightedValues->E.R.bind(values => {
values
|> Js.Array.sliceFrom(1)
|> E.A.fold_left(
(acc, x) => E.R.bind(acc, acc => pointwiseAddFn(acc, x)),
Ok(E.A.unsafe_get(values, 0)),
)
})
}
}

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type t = GenericDist_Types.genericDist
type error = GenericDist_Types.error
type toPointSetFn = t => result<PointSetTypes.pointSetDist, error>
type toSampleSetFn = t => result<SampleSetDist.t, error>
type scaleMultiplyFn = (t, float) => result<t, error>
type pointwiseAddFn = (t, t) => result<t, error>
let sampleN: (t, int) => array<float>
let toSampleSetDist: (t, int) => Belt.Result.t<QuriSquiggleLang.SampleSetDist.t, error>
let fromFloat: float => t
let toString: t => string
let normalize: t => t
let toFloatOperation: (
t,
~toPointSetFn: toPointSetFn,
~distToFloatOperation: Operation.distToFloatOperation,
) => result<float, error>
let toPointSet: (
t,
~xyPointLength: int,
~sampleCount: int,
~xSelection: GenericDist_Types.Operation.pointsetXSelection=?,
unit,
) => result<PointSetTypes.pointSetDist, error>
let toSparkline: (t, ~sampleCount: int, ~bucketCount: int=?, unit) => result<string, error>
let truncate: (
t,
~toPointSetFn: toPointSetFn,
~leftCutoff: option<float>=?,
~rightCutoff: option<float>=?,
unit,
) => result<t, error>
let algebraicCombination: (
t,
~toPointSetFn: toPointSetFn,
~toSampleSetFn: toSampleSetFn,
~arithmeticOperation: GenericDist_Types.Operation.arithmeticOperation,
~t2: t,
) => result<t, error>
let pointwiseCombination: (
t,
~toPointSetFn: toPointSetFn,
~arithmeticOperation: GenericDist_Types.Operation.arithmeticOperation,
~t2: t,
) => result<t, error>
let pointwiseCombinationFloat: (
t,
~toPointSetFn: toPointSetFn,
~arithmeticOperation: GenericDist_Types.Operation.arithmeticOperation,
~float: float,
) => result<t, error>
let mixture: (
array<(t, float)>,
~scaleMultiplyFn: scaleMultiplyFn,
~pointwiseAddFn: pointwiseAddFn,
) => result<t, error>

184
packages/squiggle-lang/src/rescript/Distributions/GenericDist/GenericDist_Types.res Normal file
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type genericDist =
| PointSet(PointSetTypes.pointSetDist)
| SampleSet(SampleSetDist.t)
| Symbolic(SymbolicDistTypes.symbolicDist)
@genType
type error =
| NotYetImplemented
| Unreachable
| DistributionVerticalShiftIsInvalid
| Other(string)
module Error = {
type t = error
let fromString = (s: string): t => Other(s)
let resultStringToResultError: result<'a, string> => result<'a, error> = n =>
n->E.R2.errMap(r => r->fromString->Error)
}
module Operation = {
type direction =
| Algebraic
| Pointwise
type arithmeticOperation = [
| #Add
| #Multiply
| #Subtract
| #Divide
| #Power
| #Logarithm
]
let arithmeticToFn = (arithmetic: arithmeticOperation) =>
switch arithmetic {
| #Add => \"+."
| #Multiply => \"*."
| #Subtract => \"-."
| #Power => \"**"
| #Divide => \"/."
| #Logarithm => (a, b) => log(a) /. log(b)
}
type toFloat = [
| #Cdf(float)
| #Inv(float)
| #Mean
| #Pdf(float)
| #Sample
]
type pointsetXSelection = [#Linear | #ByWeight]
type toDist =
| Normalize
| ToPointSet
| ToSampleSet(int)
| Truncate(option<float>, option<float>)
| Inspect
type toFloatArray = Sample(int)
type toString =
| ToString
| ToSparkline(int)
type fromDist =
| ToFloat(toFloat)
| ToDist(toDist)
| ToDistCombination(direction, arithmeticOperation, [#Dist(genericDist) | #Float(float)])
| ToString(toString)
type singleParamaterFunction =
| FromDist(fromDist)
| FromFloat(fromDist)
@genType
type genericFunctionCallInfo =
| FromDist(fromDist, genericDist)
| FromFloat(fromDist, float)
| Mixture(array<(genericDist, float)>)
let distCallToString = (distFunction: fromDist): string =>
switch distFunction {
| ToFloat(#Cdf(r)) => `cdf(${E.Float.toFixed(r)})`
| ToFloat(#Inv(r)) => `inv(${E.Float.toFixed(r)})`
| ToFloat(#Mean) => `mean`
| ToFloat(#Pdf(r)) => `pdf(${E.Float.toFixed(r)})`
| ToFloat(#Sample) => `sample`
| ToDist(Normalize) => `normalize`
| ToDist(ToPointSet) => `toPointSet`
| ToDist(ToSampleSet(r)) => `toSampleSet(${E.I.toString(r)})`
| ToDist(Truncate(_, _)) => `truncate`
| ToDist(Inspect) => `inspect`
| ToString(ToString) => `toString`
| ToString(ToSparkline(n)) => `toSparkline(${E.I.toString(n)})`
| ToDistCombination(Algebraic, _, _) => `algebraic`
| ToDistCombination(Pointwise, _, _) => `pointwise`
}
let toString = (d: genericFunctionCallInfo): string =>
switch d {
| FromDist(f, _) | FromFloat(f, _) => distCallToString(f)
| Mixture(_) => `mixture`
}
}
/*
It can be a pain to write out the genericFunctionCallInfo. The constructors help with this.
This code only covers some of genericFunctionCallInfo: many arguments could be called with either a
float or a distribution. The "UsingDists" module assumes that everything is a distribution.
This is a tradeoff of some generality in order to get a bit more simplicity.
I could see having a longer interface in the future, but it could be messy.
Like, algebraicAddDistFloat vs. algebraicAddDistDist
*/
module Constructors = {
type t = Operation.genericFunctionCallInfo
module UsingDists = {
@genType
let mean = (dist): t => FromDist(ToFloat(#Mean), dist)
let sample = (dist): t => FromDist(ToFloat(#Sample), dist)
let cdf = (dist, x): t => FromDist(ToFloat(#Cdf(x)), dist)
let inv = (dist, x): t => FromDist(ToFloat(#Inv(x)), dist)
let pdf = (dist, x): t => FromDist(ToFloat(#Pdf(x)), dist)
let normalize = (dist): t => FromDist(ToDist(Normalize), dist)
let toPointSet = (dist): t => FromDist(ToDist(ToPointSet), dist)
let toSampleSet = (dist, r): t => FromDist(ToDist(ToSampleSet(r)), dist)
let truncate = (dist, left, right): t => FromDist(ToDist(Truncate(left, right)), dist)
let inspect = (dist): t => FromDist(ToDist(Inspect), dist)
let toString = (dist): t => FromDist(ToString(ToString), dist)
let toSparkline = (dist, n): t => FromDist(ToString(ToSparkline(n)), dist)
let algebraicAdd = (dist1, dist2: genericDist): t => FromDist(
ToDistCombination(Algebraic, #Add, #Dist(dist2)),
dist1,
)
let algebraicMultiply = (dist1, dist2): t => FromDist(
ToDistCombination(Algebraic, #Multiply, #Dist(dist2)),
dist1,
)
let algebraicDivide = (dist1, dist2): t => FromDist(
ToDistCombination(Algebraic, #Divide, #Dist(dist2)),
dist1,
)
let algebraicSubtract = (dist1, dist2): t => FromDist(
ToDistCombination(Algebraic, #Subtract, #Dist(dist2)),
dist1,
)
let algebraicLogarithm = (dist1, dist2): t => FromDist(
ToDistCombination(Algebraic, #Logarithm, #Dist(dist2)),
dist1,
)
let algebraicPower = (dist1, dist2): t => FromDist(
ToDistCombination(Algebraic, #Power, #Dist(dist2)),
dist1,
)
let pointwiseAdd = (dist1, dist2): t => FromDist(
ToDistCombination(Pointwise, #Add, #Dist(dist2)),
dist1,
)
let pointwiseMultiply = (dist1, dist2): t => FromDist(
ToDistCombination(Pointwise, #Multiply, #Dist(dist2)),
dist1,
)
let pointwiseDivide = (dist1, dist2): t => FromDist(
ToDistCombination(Pointwise, #Divide, #Dist(dist2)),
dist1,
)
let pointwiseSubtract = (dist1, dist2): t => FromDist(
ToDistCombination(Pointwise, #Subtract, #Dist(dist2)),
dist1,
)
let pointwiseLogarithm = (dist1, dist2): t => FromDist(
ToDistCombination(Pointwise, #Logarithm, #Dist(dist2)),
dist1,
)
let pointwisePower = (dist1, dist2): t => FromDist(
ToDistCombination(Pointwise, #Power, #Dist(dist2)),
dist1,
)
}
}

48
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# Generic Distribution Library
This library provides one interface to generic distributions. These distributions can either be symbolic, point set (xy-coordinates of the shape), or sample set (arrays of random samples).
Different internal formats (symbolic, point set, sample set) allow for benefits and features. It's common for distributions to be converted into either point sets or sample sets to enable certain functions.
In addition to this interface, there's a second, generic function, for calling functions on this generic distribution type. This ``genericOperation`` standardizes the inputs and outputs for these various function calls. See it's ``run()`` function.
Performance is very important. Some operations can take a long time to run, and even then, be inaccurate. Because of this, we plan to have a lot of logging and stack tracing functionality eventually built in.
## Diagram of Distribution Types
```mermaid
graph TD
A[Generic Distribution] -->B{Point Set}
A --> C{Sample Set}
A --> D{Symbolic}
B ---> continuous(Continuous)
B ---> discrete(Discrete)
B --> mixed(Mixed)
continuous -.-> XYshape(XYshape)
discrete -.-> XYshape(XYshape)
mixed -.-> continuous
mixed -.-> discrete
D --> Normal(Normal)
D --> Lognormal(Lognormal)
D --> Triangular(Triangular)
D --> Beta(Beta)
D --> Uniform(Uniform)
D --> Float(Float)
D --> Exponential(Exponential)
D --> Cauchy(Cauchy)
```
## Diagram of Generic Distribution Types
## Todo
- [ ] Lots of cleanup
- [ ] Simple test story
- [ ] Provide decent stack traces for key calls in GenericOperation. This could be very useful for debugging.
- [ ] Cleanup Sample Set library
- [ ] Add memoization for calculations
- [ ] Performance bechmarking reports
- [ ] Remove most of DistPlus, much of which is not needed anymore
- [ ] More functions for Sample Set, which is very minimal now
- [ ] Allow these functions to be run on web workers
- [ ] Refactor interpreter to use GenericDist. This might not be necessary, as the new reducer-inspired interpreter is integrated.
## More todos

11
packages/squiggle-lang/src/rescript/pointSetDist/AlgebraicShapeCombination.res → packages/squiggle-lang/src/rescript/Distributions/PointSetDist/AlgebraicShapeCombination.res
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@ -114,16 +114,18 @@ let combineShapesContinuousContinuous = (
| #Subtract => (m1, m2) => m1 -. m2
| #Multiply => (m1, m2) => m1 *. m2
| #Divide => (m1, mInv2) => m1 *. mInv2
| #Exponentiate => (m1, mInv2) => m1 ** mInv2
| #Power => (m1, mInv2) => m1 ** mInv2
| #Logarithm => (m1, m2) => log(m1) /. log(m2)
} // note: here, mInv2 = mean(1 / t2) ~= 1 / mean(t2)
// TODO: I don't know what the variances are for exponentatiation
// TODO: Variances are for exponentatiation or logarithms are almost totally made up and very likely very wrong.
// converts the variances and means of the two inputs into the variance of the output
let combineVariancesFn = switch op {
| #Add => (v1, v2, _, _) => v1 +. v2
| #Subtract => (v1, v2, _, _) => v1 +. v2
| #Multiply => (v1, v2, m1, m2) => v1 *. v2 +. v1 *. m2 ** 2. +. v2 *. m1 ** 2.
| #Exponentiate => (v1, v2, m1, m2) => v1 *. v2 +. v1 *. m2 ** 2. +. v2 *. m1 ** 2.
| #Power => (v1, v2, m1, m2) => v1 *. v2 +. v1 *. m2 ** 2. +. v2 *. m1 ** 2.
| #Logarithm => (v1, v2, m1, m2) => v1 *. v2 +. v1 *. m2 ** 2. +. v2 *. m1 ** 2.
| #Divide => (v1, vInv2, m1, mInv2) => v1 *. vInv2 +. v1 *. mInv2 ** 2. +. vInv2 *. m1 ** 2.
}
@ -231,7 +233,8 @@ let combineShapesContinuousDiscrete = (
()
}
| #Multiply
| #Exponentiate
| #Power
| #Logarithm
| #Divide =>
for j in 0 to t2n - 1 {
// creates a new continuous shape for each one of the discrete points, and collects them in outXYShapes.

48
packages/squiggle-lang/src/rescript/pointSetDist/Continuous.res → packages/squiggle-lang/src/rescript/Distributions/PointSetDist/Continuous.res
View File

@ -1,6 +1,47 @@
open Distributions
type t = PointSetTypes.continuousShape
module Analysis = {
let integrate = (
~indefiniteIntegralStepwise=(p, h1) => h1 *. p,
~indefiniteIntegralLinear=(p, a, b) => a *. p +. b *. p ** 2.0 /. 2.0,
t: t,
): float => {
let xs = t.xyShape.xs
let ys = t.xyShape.ys
E.A.reducei(xs, 0.0, (acc, _x, i) => {
let areaUnderIntegral = // TODO Take this switch statement out of the loop body
switch (t.interpolation, i) {
| (_, 0) => 0.0
| (#Stepwise, _) =>
indefiniteIntegralStepwise(xs[i], ys[i - 1]) -.
indefiniteIntegralStepwise(xs[i - 1], ys[i - 1])
| (#Linear, _) =>
let x1 = xs[i - 1]
let x2 = xs[i]
if x1 == x2 {
0.0
} else {
let h1 = ys[i - 1]
let h2 = ys[i]
let b = (h1 -. h2) /. (x1 -. x2)
let a = h1 -. b *. x1
indefiniteIntegralLinear(x2, a, b) -. indefiniteIntegralLinear(x1, a, b)
}
}
acc +. areaUnderIntegral
})
}
let getMeanOfSquares = (t: t) => {
let indefiniteIntegralLinear = (p, a, b) => a *. p ** 3.0 /. 3.0 +. b *. p ** 4.0 /. 4.0
let indefiniteIntegralStepwise = (p, h1) => h1 *. p ** 3.0 /. 3.0
integrate(~indefiniteIntegralStepwise, ~indefiniteIntegralLinear, t)
}
}
let getShape = (t: t) => t.xyShape
let interpolation = (t: t) => t.interpolation
let make = (~interpolation=#Linear, ~integralSumCache=None, ~integralCache=None, xyShape): t => {
@ -194,7 +235,7 @@ module T = Dist({
let indefiniteIntegralStepwise = (p, h1) => h1 *. p ** 2.0 /. 2.0
let indefiniteIntegralLinear = (p, a, b) => a *. p ** 2.0 /. 2.0 +. b *. p ** 3.0 /. 3.0
XYShape.Analysis.integrateContinuousShape(
Analysis.integrate(
~indefiniteIntegralStepwise,
~indefiniteIntegralLinear,
t,
@ -204,10 +245,13 @@ module T = Dist({
XYShape.Analysis.getVarianceDangerously(
t,
mean,
XYShape.Analysis.getMeanOfSquaresContinuousShape,
Analysis.getMeanOfSquares,
)
})
let downsampleEquallyOverX = (length, t): t =>
t |> shapeMap(XYShape.XsConversion.proportionEquallyOverX(length))
/* This simply creates multiple copies of the continuous distribution, scaled and shifted according to
each discrete data point, and then adds them all together. */
let combineAlgebraicallyWithDiscrete = (

3
packages/squiggle-lang/src/rescript/pointSetDist/Discrete.res → packages/squiggle-lang/src/rescript/Distributions/PointSetDist/Discrete.res
View File

@ -209,8 +209,9 @@ module T = Dist({
let s = getShape(t)
E.A.reducei(s.xs, 0.0, (acc, x, i) => acc +. x *. s.ys[i])
}
let variance = (t: t): float => {
let getMeanOfSquares = t => t |> shapeMap(XYShape.Analysis.squareXYShape) |> mean
let getMeanOfSquares = t => t |> shapeMap(XYShape.T.square) |> mean
XYShape.Analysis.getVarianceDangerously(t, mean, getMeanOfSquares)
}
})

0
packages/squiggle-lang/src/rescript/pointSetDist/Distributions.res → packages/squiggle-lang/src/rescript/Distributions/PointSetDist/Distributions.res
View File

4
packages/squiggle-lang/src/rescript/pointSetDist/Mixed.res → packages/squiggle-lang/src/rescript/Distributions/PointSetDist/Mixed.res
View File

@ -213,8 +213,8 @@ module T = Dist({
let getMeanOfSquares = ({discrete, continuous}: t) => {
let discreteMean =
discrete |> Discrete.shapeMap(XYShape.Analysis.squareXYShape) |> Discrete.T.mean
let continuousMean = continuous |> XYShape.Analysis.getMeanOfSquaresContinuousShape
discrete |> Discrete.shapeMap(XYShape.T.square) |> Discrete.T.mean
let continuousMean = continuous |> Continuous.Analysis.getMeanOfSquares
(discreteMean *. discreteIntegralSum +. continuousMean *. continuousIntegralSum) /.
totalIntegralSum
}

0
packages/squiggle-lang/src/rescript/pointSetDist/MixedShapeBuilder.res → packages/squiggle-lang/src/rescript/Distributions/PointSetDist/MixedShapeBuilder.res
View File

13
packages/squiggle-lang/src/rescript/pointSetDist/PointSetDist.res → packages/squiggle-lang/src/rescript/Distributions/PointSetDist/PointSetDist.res
View File

@ -34,6 +34,7 @@ let toMixed = mapToAll((
),
))
//TODO WARNING: The combineAlgebraicallyWithDiscrete will break for subtraction and division, like, discrete - continous
let combineAlgebraically = (op: Operation.algebraicOperation, t1: t, t2: t): t =>
switch (t1, t2) {
| (Continuous(m1), Continuous(m2)) =>
@ -41,7 +42,8 @@ let combineAlgebraically = (op: Operation.algebraicOperation, t1: t, t2: t): t =
| (Continuous(m1), Discrete(m2))
| (Discrete(m2), Continuous(m1)) =>
Continuous.combineAlgebraicallyWithDiscrete(op, m1, m2) |> Continuous.T.toPointSetDist
| (Discrete(m1), Discrete(m2)) => Discrete.combineAlgebraically(op, m1, m2) |> Discrete.T.toPointSetDist
| (Discrete(m1), Discrete(m2)) =>
Discrete.combineAlgebraically(op, m1, m2) |> Discrete.T.toPointSetDist
| (m1, m2) => Mixed.combineAlgebraically(op, toMixed(m1), toMixed(m2)) |> Mixed.T.toPointSetDist
}
@ -189,15 +191,20 @@ let isFloat = (t: t) =>
let sampleNRendered = (n, dist) => {
let integralCache = T.Integral.get(dist)
let distWithUpdatedIntegralCache = T.updateIntegralCache(Some(integralCache), dist)
doN(n, () => sample(distWithUpdatedIntegralCache))
}
let operate = (distToFloatOp: Operation.distToFloatOperation, s): float =>
switch distToFloatOp {
| #Pdf(f) => pdf(f, s)
| #Cdf(f) => pdf(f, s)
| #Cdf(f) => cdf(f, s)
| #Inv(f) => inv(f, s)
| #Sample => sample(s)
| #Mean => T.mean(s)
}
let toSparkline = (t: t, bucketCount) =>
T.toContinuous(t)
->E.O2.fmap(Continuous.downsampleEquallyOverX(bucketCount))
->E.O2.toResult("toContinous Error: Could not convert into continuous distribution")
->E.R2.fmap(r => Continuous.getShape(r).ys->Sparklines.create())

93
packages/squiggle-lang/src/rescript/Distributions/PointSetDist/PointSetTypes.res Normal file
View File

@ -0,0 +1,93 @@
type domainLimit = {
xPoint: float,
excludingProbabilityMass: float,
}
type domain =
| Complete
| LeftLimited(domainLimit)
| RightLimited(domainLimit)
| LeftAndRightLimited(domainLimit, domainLimit)
type distributionType = [
| #PDF
| #CDF
]
type xyShape = XYShape.xyShape;
type interpolationStrategy = XYShape.interpolationStrategy;
type extrapolationStrategy = XYShape.extrapolationStrategy;
type interpolator = XYShape.extrapolationStrategy;
type rec continuousShape = {
xyShape: xyShape,
interpolation: interpolationStrategy,
integralSumCache: option<float>,
integralCache: option<continuousShape>,
}
type discreteShape = {
xyShape: xyShape,
integralSumCache: option<float>,
integralCache: option<continuousShape>,
}
type mixedShape = {
continuous: continuousShape,
discrete: discreteShape,
integralSumCache: option<float>,
integralCache: option<continuousShape>,
}
type pointSetDistMonad<'a, 'b, 'c> =
| Mixed('a)
| Discrete('b)
| Continuous('c)
@genType
type pointSetDist = pointSetDistMonad<mixedShape, discreteShape, continuousShape>
module ShapeMonad = {
let fmap = (t: pointSetDistMonad<'a, 'b, 'c>, (fn1, fn2, fn3)): pointSetDistMonad<'d, 'e, 'f> =>
switch t {
| Mixed(m) => Mixed(fn1(m))
| Discrete(m) => Discrete(fn2(m))
| Continuous(m) => Continuous(fn3(m))
}
}
type generationSource =
| SquiggleString(string)
| Shape(pointSetDist)
@genType
type distPlus = {
pointSetDist: pointSetDist,
integralCache: continuousShape,
squiggleString: option<string>,
}
type mixedPoint = {
continuous: float,
discrete: float,
}
module MixedPoint = {
type t = mixedPoint
let toContinuousValue = (t: t) => t.continuous
let toDiscreteValue = (t: t) => t.discrete
let makeContinuous = (continuous: float): t => {continuous: continuous, discrete: 0.0}
let makeDiscrete = (discrete: float): t => {continuous: 0.0, discrete: discrete}
let fmap = (fn: float => float, t: t) => {
continuous: fn(t.continuous),
discrete: fn(t.discrete),
}
let combine2 = (fn, c: t, d: t): t => {
continuous: fn(c.continuous, d.continuous),
discrete: fn(c.discrete, d.discrete),
}
let add = combine2((a, b) => a +. b)
}

0
packages/squiggle-lang/src/rescript/sampleSet/KdeLibrary.js → packages/squiggle-lang/src/rescript/Distributions/SampleSetDist/KdeLibrary.js
View File

68
packages/squiggle-lang/src/rescript/Distributions/SampleSetDist/SampleSetDist.res Normal file
View File

@ -0,0 +1,68 @@
/*
This is used as a smart constructor. The only way to create a SampleSetDist.t is to call
this constructor.
https://stackoverflow.com/questions/66909578/how-to-make-a-type-constructor-private-in-rescript-except-in-current-module
*/
module T: {
//This really should be hidden (remove the array<float>). The reason it isn't is to act as an escape hatch in JS__Test.ts.
//When we get a good functional library in TS, we could refactor that out.
@genType
type t = array<float>
let make: array<float> => result<t, string>
let get: t => array<float>
} = {
type t = array<float>
let make = (a: array<float>) =>
if E.A.length(a) > 5 {
Ok(a)
} else {
Error("too small")
}
let get = (a: t) => a
}
include T
let length = (t: t) => get(t)->E.A.length
/*
TODO: Refactor to get a more precise estimate. Also, this code is just fairly messy, could use
some refactoring.
*/
let toPointSetDist = (~samples: t, ~samplingInputs: SamplingInputs.samplingInputs): result<
PointSetTypes.pointSetDist,
string,
> =>
SampleSetDist_ToPointSet.toPointSetDist(
~samples=get(samples),
~samplingInputs,
(),
).pointSetDist->E.O2.toResult("Failed to convert to PointSetDist")
//Randomly get one sample from the distribution
let sample = (t: t): float => {
let i = E.Int.random(~min=0, ~max=E.A.length(get(t)) - 1)
E.A.unsafe_get(get(t), i)
}
/*
If asked for a length of samples shorter or equal the length of the distribution,
return this first n samples of this distribution.
Else, return n random samples of the distribution.
The former helps in cases where multiple distributions are correlated.
However, if n > length(t), then there's no clear right answer, so we just randomly
sample everything.
*/
let sampleN = (t: t, n) => {
if n <= E.A.length(get(t)) {
E.A.slice(get(t), ~offset=0, ~len=n)
} else {
Belt.Array.makeBy(n, _ => sample(t))
}
}
//TODO: Figure out what to do if distributions are different lengths. ``zip`` is kind of inelegant for this.
let map2 = (~fn: (float, float) => float, ~t1: t, ~t2: t) => {
let samples = Belt.Array.zip(get(t1), get(t2))->E.A2.fmap(((a, b)) => fn(a, b))
make(samples)
}

2
packages/squiggle-lang/src/rescript/sampleSet/Bandwidth.res → packages/squiggle-lang/src/rescript/Distributions/SampleSetDist/SampleSetDist_Bandwidth.res
View File

@ -1,4 +1,4 @@
//The math here was taken from https://github.com/jasondavies/science.js/blob/master/src/stats/bandwidth.js
//The math here was taken from https://github.com/jasondavies/science.js/blob/master/src/stats/SampleSetDist_Bandwidth.js
let len = x => E.A.length(x) |> float_of_int

5
packages/squiggle-lang/src/rescript/sampleSet/SampleSet.res → packages/squiggle-lang/src/rescript/Distributions/SampleSetDist/SampleSetDist_ToPointSet.res
View File

@ -55,6 +55,7 @@ module Internals = {
: {
let _ = Js.Array.push(element, continuous)
}
()
})
(continuous, discrete)
@ -69,7 +70,7 @@ module Internals = {
let formatUnitWidth = w => Jstat.max([w, 1.0]) |> int_of_float
let suggestedUnitWidth = (samples, outputXYPoints) => {
let suggestedXWidth = Bandwidth.nrd0(samples)
let suggestedXWidth = SampleSetDist_Bandwidth.nrd0(samples)
xWidthToUnitWidth(samples, outputXYPoints, suggestedXWidth)
}
@ -96,7 +97,7 @@ let toPointSetDist = (
let pdf =
continuousPart |> E.A.length > 5
? {
let _suggestedXWidth = Bandwidth.nrd0(continuousPart)
let _suggestedXWidth = SampleSetDist_Bandwidth.nrd0(continuousPart)
// todo: This does some recalculating from the last step.
let _suggestedUnitWidth = Internals.T.suggestedUnitWidth(
continuousPart,

35
packages/squiggle-lang/src/rescript/symbolicDist/SymbolicDist.res → packages/squiggle-lang/src/rescript/Distributions/SymbolicDist/SymbolicDist.res
View File

@ -50,10 +50,12 @@ module Exponential = {
type t = exponential
let make = (rate: float): result<symbolicDist, string> =>
rate > 0.0
? Ok(#Exponential({
? Ok(
#Exponential({
rate: rate,
}))
: Error("Exponential distributions mean must be larger than 0")
}),
)
: Error("Exponential distributions rate must be larger than 0.")
let pdf = (x, t: t) => Jstat.Exponential.pdf(x, t.rate)
let cdf = (x, t: t) => Jstat.Exponential.cdf(x, t.rate)
let inv = (p, t: t) => Jstat.Exponential.inv(p, t.rate)
@ -69,7 +71,7 @@ module Cauchy = {
let cdf = (x, t: t) => Jstat.Cauchy.cdf(x, t.local, t.scale)
let inv = (p, t: t) => Jstat.Cauchy.inv(p, t.local, t.scale)
let sample = (t: t) => Jstat.Cauchy.sample(t.local, t.scale)
let mean = (_: t) => Error("Cauchy distributions have no mean value.")
let mean = (_: t) => Error("Cauchy distributions may have no mean value.")
let toString = ({local, scale}: t) => j`Cauchy($local, $scale)`
}
@ -78,8 +80,8 @@ module Triangular = {
let make = (low, medium, high): result<symbolicDist, string> =>
low < medium && medium < high
? Ok(#Triangular({low: low, medium: medium, high: high}))
: Error("Triangular values must be increasing order")
let pdf = (x, t: t) => Jstat.Triangular.pdf(x, t.low, t.high, t.medium)
: Error("Triangular values must be increasing order.")
let pdf = (x, t: t) => Jstat.Triangular.pdf(x, t.low, t.high, t.medium) // not obvious in jstat docs that high comes before medium?
let cdf = (x, t: t) => Jstat.Triangular.cdf(x, t.low, t.high, t.medium)
let inv = (p, t: t) => Jstat.Triangular.inv(p, t.low, t.high, t.medium)
let sample = (t: t) => Jstat.Triangular.sample(t.low, t.high, t.medium)
@ -127,8 +129,7 @@ module Lognormal = {
let mu = Js.Math.log(mean) -. 0.5 *. Js.Math.log(variance /. meanSquared +. 1.0)
let sigma = Js.Math.pow_float(~base=Js.Math.log(variance /. meanSquared +. 1.0), ~exp=0.5)
Ok(#Lognormal({mu: mu, sigma: sigma}))
}
else {
} else {
Error("Lognormal standard deviation must be larger than 0")
}
}
@ -154,9 +155,7 @@ module Lognormal = {
module Uniform = {
type t = uniform
let make = (low, high) =>
high > low
? Ok(#Uniform({low: low, high: high}))
: Error("High must be larger than low")
high > low ? Ok(#Uniform({low: low, high: high})) : Error("High must be larger than low")
let pdf = (x, t: t) => Jstat.Uniform.pdf(x, t.low, t.high)
let cdf = (x, t: t) => Jstat.Uniform.cdf(x, t.low, t.high)
@ -165,6 +164,7 @@ module Uniform = {
let mean = (t: t) => Ok(Jstat.Uniform.mean(t.low, t.high))
let toString = ({low, high}: t) => j`Uniform($low,$high)`
let truncate = (low, high, t: t): t => {
//todo: add check
let newLow = max(E.O.default(neg_infinity, low), t.low)
let newHigh = min(E.O.default(infinity, high), t.high)
{low: newLow, high: newHigh}
@ -182,6 +182,15 @@ module Float = {
let toString = Js.Float.toString
}
module From90thPercentile = {
let make = (low, high) =>
switch (low, high) {
| (low, high) if low <= 0.0 && low < high => Ok(Normal.from90PercentCI(low, high))
| (low, high) if low < high => Ok(Lognormal.from90PercentCI(low, high))
| (_, _) => Error("Low value must be less than high value.")
}
}
module T = {
let minCdfValue = 0.0001
let maxCdfValue = 0.9999
@ -337,11 +346,11 @@ module T = {
| _ => #NoSolution
}
let toPointSetDist = (sampleCount, d: symbolicDist): PointSetTypes.pointSetDist =>
let toPointSetDist = (~xSelection=#ByWeight, sampleCount, d: symbolicDist): PointSetTypes.pointSetDist =>
switch d {
| #Float(v) => Discrete(Discrete.make(~integralSumCache=Some(1.0), {xs: [v], ys: [1.0]}))
| _ =>
let xs = interpolateXs(~xSelection=#ByWeight, d, sampleCount)
let xs = interpolateXs(~xSelection, d, sampleCount)
let ys = xs |> E.A.fmap(x => pdf(x, d))
Continuous(Continuous.make(~integralSumCache=Some(1.0), {xs: xs, ys: ys}))
}

0
packages/squiggle-lang/src/rescript/symbolicDist/SymbolicDistTypes.res → packages/squiggle-lang/src/rescript/Distributions/SymbolicDist/SymbolicDistTypes.res
View File

0
packages/squiggle-lang/src/rescript/interpreter/AST.res → packages/squiggle-lang/src/rescript/OldInterpreter/AST.res
View File

2
packages/squiggle-lang/src/rescript/interpreter/ASTEvaluator.res → packages/squiggle-lang/src/rescript/OldInterpreter/ASTEvaluator.res
View File

@ -118,7 +118,7 @@ module PointwiseCombination = {
switch pointwiseOp {
| #Add => pointwiseAdd(evaluationParams, t1, t2)
| #Multiply => pointwiseCombine(\"*.", evaluationParams, t1, t2)
| #Exponentiate => pointwiseCombine(\"**", evaluationParams, t1, t2)
| #Power => pointwiseCombine(\"**", evaluationParams, t1, t2)
}
}

13
packages/squiggle-lang/src/rescript/interpreter/ASTTypes.res → packages/squiggle-lang/src/rescript/OldInterpreter/ASTTypes.res
View File

@ -218,15 +218,14 @@ module SamplingDistribution = {
algebraicOp,
a,
b,
)
) |> E.O.toResult("Could not get samples")
let sampleSetDist = samples -> E.R.bind(SampleSetDist.make)
let pointSetDist =
samples
|> E.O.fmap(r =>
SampleSet.toPointSetDist(~samplingInputs=evaluationParams.samplingInputs, ~samples=r, ())
)
|> E.O.bind(_, r => r.pointSetDist)
|> E.O.toResult("No response")
sampleSetDist
-> E.R.bind(r =>
SampleSetDist.toPointSetDist(~samplingInputs=evaluationParams.samplingInputs, ~samples=r));
pointSetDist |> E.R.fmap(r => #Normalize(#RenderedDist(r)))
})
}

18
packages/squiggle-lang/src/rescript/pointSetDist/DistPlus.res → packages/squiggle-lang/src/rescript/OldInterpreter/DistPlus.res
View File

@ -8,28 +8,22 @@ let make =
(
~pointSetDist,
~squiggleString,
~domain=Complete,
~unit=UnspecifiedDistribution,
(),
)
: t => {
let integral = pointSetDistIntegral(pointSetDist);
{pointSetDist, domain, integralCache: integral, unit, squiggleString};
{pointSetDist, integralCache: integral, squiggleString};
};
let update =
(
~pointSetDist=?,
~integralCache=?,
~domain=?,
~unit=?,
~squiggleString=?,
t: t,
) => {
pointSetDist: E.O.default(t.pointSetDist, pointSetDist),
integralCache: E.O.default(t.integralCache, integralCache),
domain: E.O.default(t.domain, domain),
unit: E.O.default(t.unit, unit),
squiggleString: E.O.default(t.squiggleString, squiggleString),
};
@ -38,12 +32,6 @@ let updateShape = (pointSetDist, t) => {
update(~pointSetDist, ~integralCache, t);
};
let domainIncludedProbabilityMass = (t: t) =>
Domain.includedProbabilityMass(t.domain);
let domainIncludedProbabilityMassAdjustment = (t: t, f) =>
f *. Domain.includedProbabilityMass(t.domain);
let toPointSetDist = ({pointSetDist, _}: t) => pointSetDist;
let pointSetDistFn = (fn, {pointSetDist}: t) => fn(pointSetDist);
@ -73,8 +61,7 @@ module T =
let xToY = (f, t: t) =>
t
|> toPointSetDist
|> PointSetDist.T.xToY(f)
|> MixedPoint.fmap(domainIncludedProbabilityMassAdjustment(t));
|> PointSetDist.T.xToY(f);
let minX = pointSetDistFn(PointSetDist.T.minX);
let maxX = pointSetDistFn(PointSetDist.T.maxX);
@ -115,7 +102,6 @@ module T =
f,
toPointSetDist(t),
)
|> domainIncludedProbabilityMassAdjustment(t);
};
// TODO: This part is broken when there is a limit, if this is supposed to be taken into account.

4
packages/squiggle-lang/src/rescript/interpreter/typeSystem/HardcodedFunctions.res → packages/squiggle-lang/src/rescript/OldInterpreter/typeSystem/HardcodedFunctions.res
View File

@ -227,8 +227,8 @@ let all = [
},
(),
),
makeRenderedDistFloat("scaleExp", (dist, float) => verticalScaling(#Exponentiate, dist, float)),
makeRenderedDistFloat("scaleExp", (dist, float) => verticalScaling(#Power, dist, float)),
makeRenderedDistFloat("scaleMultiply", (dist, float) => verticalScaling(#Multiply, dist, float)),
makeRenderedDistFloat("scaleLog", (dist, float) => verticalScaling(#Log, dist, float)),
makeRenderedDistFloat("scaleLog", (dist, float) => verticalScaling(#Logarithm, dist, float)),
Multimodal._function,
]

0
packages/squiggle-lang/src/rescript/interpreter/typeSystem/TypeSystem.res → packages/squiggle-lang/src/rescript/OldInterpreter/typeSystem/TypeSystem.res
View File

4
packages/squiggle-lang/src/rescript/parser/Parser.res → packages/squiggle-lang/src/rescript/OldParser/Parser.res
View File

@ -144,11 +144,11 @@ module MathAdtToDistDst = {
| ("subtract", _) => Error("Subtraction needs two operands")
| ("multiply", [l, r]) => toOkAlgebraic((#Multiply, l, r))
| ("multiply", _) => Error("Multiplication needs two operands")
| ("pow", [l, r]) => toOkAlgebraic((#Exponentiate, l, r))
| ("pow", [l, r]) => toOkAlgebraic((#Power, l, r))
| ("pow", _) => Error("Exponentiation needs two operands")
| ("dotMultiply", [l, r]) => toOkPointwise((#Multiply, l, r))
| ("dotMultiply", _) => Error("Dotwise multiplication needs two operands")
| ("dotPow", [l, r]) => toOkPointwise((#Exponentiate, l, r))
| ("dotPow", [l, r]) => toOkPointwise((#Power, l, r))
| ("dotPow", _) => Error("Dotwise exponentiation needs two operands")
| ("rightLogShift", [l, r]) => toOkPointwise((#Add, l, r))
| ("rightLogShift", _) => Error("Dotwise addition needs two operands")

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To interface your library there only 2 files to be modified:
- Reducer/ReducerInterface/ReducerInterface_ExpressionValue.res
This is where your additional types are referred for the dispatcher.
- Reducer/ReducerInterface/ReducerInterface_ExternalLibrary.res
This is where dispatching to your library is done. If the dispatcher becomes beastly then feel free to divide it into submodules.
The Reducer is built to use different external libraries as well as different external parsers. Both external parsers and external libraries are plugins.
And finally try using Reducer.eval to how your extentions look:
```rescript
test("1+2", () => expectEvalToBe( "1+2", "Ok(3)"))
```

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packages/squiggle-lang/src/rescript/Reducer/Reducer.res Normal file
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module Dispatch = Reducer_Dispatch
module ErrorValue = Reducer_ErrorValue
module Expression = Reducer_Expression
module Extra = Reducer_Extra
module Js = Reducer_Js
module MathJs = Reducer_MathJs
let eval = Expression.eval
let parse = Expression.parse

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packages/squiggle-lang/src/rescript/Reducer/Reducer.resi Normal file
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module Dispatch = Reducer_Dispatch
module ErrorValue = Reducer_ErrorValue
module Expression = Reducer_Expression
module Extra = Reducer_Extra
module Js = Reducer_Js
module MathJs = Reducer_MathJs
let eval: string => result<Expression.expressionValue, ErrorValue.errorValue>
let parse: string => result<Expression.expression, ErrorValue.errorValue>

1
packages/squiggle-lang/src/rescript/Reducer/Reducer_Dispatch/Reducer_Dispatch.res Normal file
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module Builtin = Reducer_Dispatch_BuiltIn

72
packages/squiggle-lang/src/rescript/Reducer/Reducer_Dispatch/Reducer_Dispatch_BuiltIn.res Normal file
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module ExternalLibrary = ReducerInterface.ExternalLibrary
module MathJs = Reducer_MathJs
open ReducerInterface.ExpressionValue
open Reducer_ErrorValue
/*
MathJs provides default implementations for builtins
This is where all the expected builtins like + = * / sin cos log ln etc are handled
DO NOT try to add external function mapping here!
*/
exception TestRescriptException
let callInternal = (call: functionCall): result<'b, errorValue> => {
let callMathJs = (call: functionCall): result<'b, errorValue> =>
switch call {
| ("jsraise", [msg]) => Js.Exn.raiseError(toString(msg)) // For Tests
| ("resraise", _) => raise(TestRescriptException) // For Tests
| call => call->toStringFunctionCall->MathJs.Eval.eval
}
let constructRecord = arrayOfPairs => {
Belt.Array.map(arrayOfPairs, pairValue => {
switch pairValue {
| EvArray([EvString(key), valueValue]) => (key, valueValue)
| _ => ("wrong key type", pairValue->toStringWithType->EvString)
}
})
->Js.Dict.fromArray
->EvRecord
->Ok
}
let arrayAtIndex = (aValueArray: array<expressionValue>, fIndex: float) =>
switch Belt.Array.get(aValueArray, Belt.Int.fromFloat(fIndex)) {
| Some(value) => value->Ok
| None => REArrayIndexNotFound("Array index not found", Belt.Int.fromFloat(fIndex))->Error
}
let recordAtIndex = (dict: Js.Dict.t<expressionValue>, sIndex) =>
switch Js.Dict.get(dict, sIndex) {
| Some(value) => value->Ok
| None => RERecordPropertyNotFound("Record property not found", sIndex)->Error
}
switch call {
// | ("$constructRecord", pairArray)
// | ("$atIndex", [EvArray(anArray), EvNumber(fIndex)]) => arrayAtIndex(anArray, fIndex)
// | ("$atIndex", [EvRecord(aRecord), EvString(sIndex)]) => recordAtIndex(aRecord, sIndex)
| ("$constructRecord", [EvArray(arrayOfPairs)]) => constructRecord(arrayOfPairs)
| ("$atIndex", [EvArray(aValueArray), EvArray([EvNumber(fIndex)])]) =>
arrayAtIndex(aValueArray, fIndex)
| ("$atIndex", [EvRecord(dict), EvArray([EvString(sIndex)])]) => recordAtIndex(dict, sIndex)
| ("$atIndex", [obj, index]) =>
(toStringWithType(obj) ++ "??~~~~" ++ toStringWithType(index))->EvString->Ok
| call => callMathJs(call)
}
}
/*
Lisp engine uses Result monad while reducing expressions
*/
let dispatch = (call: functionCall): result<expressionValue, errorValue> =>
try {
let (fn, args) = call
// There is a bug that prevents string match in patterns
// So we have to recreate a copy of the string
ExternalLibrary.dispatch((Js.String.make(fn), args), callInternal)
} catch {
| Js.Exn.Error(obj) => REJavaScriptExn(Js.Exn.message(obj), Js.Exn.name(obj))->Error
| _ => RETodo("unhandled rescript exception")->Error
}

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packages/squiggle-lang/src/rescript/Reducer/Reducer_ErrorValue.res Normal file
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type errorValue =
| REArrayIndexNotFound(string, int)
| REFunctionExpected(string)
| REJavaScriptExn(option<string>, option<string>) // Javascript Exception
| RERecordPropertyNotFound(string, string)
| RETodo(string) // To do
type t = errorValue
let errorToString = err =>
switch err {
| REArrayIndexNotFound(msg, index) => `${msg}: ${Js.String.make(index)}`
| REFunctionExpected(msg) => `Function expected: ${msg}`
| REJavaScriptExn(omsg, oname) => {
let answer = "JS Exception:"
let answer = switch oname {
| Some(name) => `${answer} ${name}`
| _ => answer
}
let answer = switch omsg {
| Some(msg) => `${answer}: ${msg}`
| _ => answer
}
answer
}
| RERecordPropertyNotFound(msg, index) => `${msg}: ${index}`
| RETodo(msg) => `TODO: ${msg}`
}

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packages/squiggle-lang/src/rescript/Reducer/Reducer_Expression/Reducer_Expression.res Normal file
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module BuiltIn = Reducer_Dispatch_BuiltIn
module ExpressionValue = ReducerInterface.ExpressionValue
module Extra = Reducer_Extra
module MathJs = Reducer_MathJs
module Result = Belt.Result
module T = Reducer_Expression_T
open Reducer_ErrorValue
type expression = T.expression
type expressionValue = ExpressionValue.expressionValue
type t = expression
/*
Shows the Lisp Code as text lisp code
*/
let rec toString = expression =>
switch expression {
| T.EList(aList) =>
`(${Belt.List.map(aList, aValue => toString(aValue))
->Extra.List.interperse(" ")
->Belt.List.toArray
->Js.String.concatMany("")})`
| EValue(aValue) => ExpressionValue.toString(aValue)
}
let toStringResult = codeResult =>
switch codeResult {
| Ok(a) => `Ok(${toString(a)})`
| Error(m) => `Error(${Js.String.make(m)})`
}
/*
Converts a MathJs code to Lisp Code
*/
let parse_ = (expr: string, parser, converter): result<t, errorValue> =>
expr->parser->Result.flatMap(node => converter(node))
let parse = (mathJsCode: string): result<t, errorValue> =>
mathJsCode->parse_(MathJs.Parse.parse, MathJs.ToExpression.fromNode)
module MapString = Belt.Map.String
type bindings = MapString.t<unit>
let defaultBindings: bindings = MapString.fromArray([])
// TODO Define bindings for function execution context
/*
After reducing each level of code tree, we have a value list to evaluate
*/
let reduceValueList = (valueList: list<expressionValue>): result<expressionValue, 'e> =>
switch valueList {
| list{EvSymbol(fName), ...args} => (fName, args->Belt.List.toArray)->BuiltIn.dispatch
| _ => valueList->Belt.List.toArray->ExpressionValue.EvArray->Ok
}
/*
Recursively evaluate/reduce the code tree
*/
let rec reduceExpression = (expression: t, bindings): result<expressionValue, 'e> =>
switch expression {
| T.EValue(value) => value->Ok
| T.EList(list) => {
let racc: result<list<expressionValue>, 'e> = list->Belt.List.reduceReverse(Ok(list{}), (
racc,
each: expression,
) =>
racc->Result.flatMap(acc => {
each
->reduceExpression(bindings)
->Result.flatMap(newNode => {
acc->Belt.List.add(newNode)->Ok
})
})
)
racc->Result.flatMap(acc => acc->reduceValueList)
}
}
let evalWBindingsExpression = (aExpression, bindings): result<expressionValue, 'e> =>
reduceExpression(aExpression, bindings)
/*
Evaluates MathJs code via Lisp using bindings and answers the result
*/
let evalWBindings = (codeText: string, bindings: bindings) => {
parse(codeText)->Result.flatMap(code => code->evalWBindingsExpression(bindings))
}
/*
Evaluates MathJs code via Lisp and answers the result
*/
let eval = (code: string) => evalWBindings(code, defaultBindings)

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packages/squiggle-lang/src/rescript/Reducer/Reducer_Expression/Reducer_Expression.resi Normal file
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module Result = Belt.Result
module T = Reducer_Expression_T
type expression = T.expression
type expressionValue = ReducerInterface.ExpressionValue.expressionValue
type t = expression
let toString: T.expression => Js.String.t
let toStringResult: result<T.expression, 'a> => string
let parse: string => result<expression, Reducer_ErrorValue.t>
module MapString = Belt.Map.String
type bindings = MapString.t<unit>
let defaultBindings: bindings
let reduceValueList: list<expressionValue> => result<
expressionValue,
Reducer_ErrorValue.t,
>
let reduceExpression: (expression, 'a) => result<
expressionValue,
Reducer_ErrorValue.t,
>
let evalWBindingsExpression: (expression, 'a) => result<
expressionValue,
Reducer_ErrorValue.t,
>
let evalWBindings: (string, bindings) => Result.t<
expressionValue,
Reducer_ErrorValue.t,
>
let eval: string => Result.t<expressionValue, Reducer_ErrorValue.t>

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packages/squiggle-lang/src/rescript/Reducer/Reducer_Expression/Reducer_Expression_T.res Normal file
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open ReducerInterface.ExpressionValue
type rec expression =
| EList(list<expression>) // A list to map-reduce
| EValue(expressionValue) // Irreducible built-in value. Reducer should not know the internals. External libraries are responsible

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