Merge pull request #124 from QURIresearch/sparklines

sparklines (issue 70)
This commit is contained in:
Ozzie Gooen 2022-03-29 17:12:32 -04:00 committed by GitHub
commit ffe5846bfe
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
5 changed files with 84 additions and 2 deletions

View File

@ -36,6 +36,15 @@ You need `yarn`.
TODO: fill this out based on all the different packages scripts once they cool down.
## 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.

View File

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

View File

@ -0,0 +1,33 @@
open Jest
open Expect
open Js.Array
open SymbolicDist
let makeTest = (~only=false, str, item1, item2) =>
only
? Only.test(str, () => expect(item1) -> toEqual(item2))
: test(str, () => expect(item1) -> toEqual(item2))
let pdfImage = (thePdf, inps) => map(thePdf, inps)
let parameterWiseAdditionHelper = (n1: SymbolicDistTypes.normal, n2: SymbolicDistTypes.normal) => {
let normalDistAtSumMeanConstr = Normal.add(n1, n2)
let normalDistAtSumMean: SymbolicDistTypes.normal = switch normalDistAtSumMeanConstr {
| #Normal(params) => params
}
x => Normal.pdf(x, normalDistAtSumMean)
}
describe("Normal distribution with sparklines", () => {
let normalDistAtMean5: SymbolicDistTypes.normal = {mean: 5.0, stdev: 2.0}
let normalDistAtMean10: SymbolicDistTypes.normal = {mean: 10.0, stdev: 2.0}
let range20Float = E.A.rangeFloat(0, 20) // [0.0,1.0,2.0,3.0,4.0,...19.0,]
let pdfNormalDistAtMean5 = x => Normal.pdf(x, normalDistAtMean5)
let sparklineMean5 = pdfImage(pdfNormalDistAtMean5, range20Float)
makeTest("mean=5", Sparklines.create(sparklineMean5, ()), `▁▂▃▅███▅▃▂▁▁▁▁▁▁▁▁▁▁▁`)
let sparklineMean15 = normalDistAtMean5 -> parameterWiseAdditionHelper(normalDistAtMean10) -> pdfImage(range20Float)
makeTest("parameter-wise addition of two normal distributions", Sparklines.create(sparklineMean15, ()), `▁▁▁▁▁▁▁▁▁▁▂▃▅▇███▇▅▃▂`)
})

View File

@ -1,5 +1,4 @@
open Rationale.Function.Infix
module FloatFloatMap = {
module Id = Belt.Id.MakeComparable({
type t = float
@ -87,6 +86,11 @@ module O = {
let max = compare(\">")
}
module O2 = {
let default = (a, b) => O.default(b, a)
let toExn = (a, b) => O.toExn(b, a)
}
/* Functions */
module F = {
let apply = (a, e) => a |> e
@ -269,6 +273,8 @@ module A = {
))
|> Rationale.Result.return
}
let rangeFloat = (~step=1, start, stop) =>
Belt.Array.rangeBy(start, stop, ~step) |> fmap(Belt.Int.toFloat)
// This zips while taking the longest elements of each array.
let zipMaxLength = (array1, array2) => {
@ -322,7 +328,8 @@ module A = {
| r => Some(r)
}
)
let filter = (o, e) => Js.Array.filter(o, e)
let filter = Js.Array.filter
let joinWith = Js.Array.joinWith
module O = {
let concatSomes = (optionals: array<option<'a>>): array<'a> =>
@ -405,6 +412,7 @@ module A = {
: {
let _ = Js.Array.push(element, continuous)
}
()
})
@ -434,6 +442,11 @@ module A = {
}
}
module A2 = {
let fmap = (a, b) => Array.map(b, a)
let joinWith = (a, b) => A.joinWith(b, a)
}
module JsArray = {
let concatSomes = (optionals: Js.Array.t<option<'a>>): Js.Array.t<'a> =>
optionals

View File

@ -0,0 +1,26 @@
// Port of Sindre Sorhus' Sparkly to Rescript
// reference implementation: https://github.com/sindresorhus/sparkly
// Omitting rgb "fire" style, so no `chalk` dependency
// Omitting: NaN handling, special consideration for constant data.
let ticks = [`▁`, `▂`, `▃`, `▄`, `▅`, `▆`, `▇`, `█`]
let _ticksLength = E.A.length(ticks)
let _heightToTickIndex = (maximum: float, v: float) => {
let suggestedTickIndex = Js.Math.ceil_int(v /. maximum *. Belt.Int.toFloat(_ticksLength)) - 1
max(suggestedTickIndex, 0)
}
let create = (relativeHeights: array<float>, ~maximum=?, ()) => {
if E.A.length(relativeHeights) === 0 {
""
} else {
let maximum = maximum->E.O2.default(E.A.max(relativeHeights)->E.O2.toExn(""))
relativeHeights
->E.A2.fmap(_heightToTickIndex(maximum))
->E.A2.fmap(r => E.A.get(ticks, r)->E.O2.toExn(""))
->E.A2.joinWith("")
}
}