77 lines
2.4 KiB
Plaintext
77 lines
2.4 KiB
Plaintext
open Jest
|
|
open Expect
|
|
|
|
let env: GenericDist_GenericOperation.env = {
|
|
sampleCount: 100,
|
|
xyPointLength: 100,
|
|
}
|
|
|
|
let normalDist: 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 uniformDist: GenericDist_Types.genericDist = Symbolic(#Uniform({low: 9.0, high: 10.0}))
|
|
|
|
let {toFloat, toDist, toString, toError} = module(GenericDist_GenericOperation.Output)
|
|
let {run} = module(GenericDist_GenericOperation)
|
|
let {fmap} = module(GenericDist_GenericOperation.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("normalize", () => {
|
|
test("has no impact on normal dist", () => {
|
|
let result = run(#fromDist(#toDist(#normalize), normalDist))
|
|
expect(result)->toEqual(Dist(normalDist))
|
|
})
|
|
})
|
|
|
|
describe("mean", () => {
|
|
test("for a normal distribution", () => {
|
|
let result = GenericDist_GenericOperation.run(~env, #fromDist(#toFloat(#Mean), normalDist))
|
|
expect(result)->toEqual(Float(5.0))
|
|
})
|
|
})
|
|
|
|
describe("mixture", () => {
|
|
test("on two normal distributions", () => {
|
|
let result =
|
|
run(#mixture([(normalDist10, 0.5), (normalDist20, 0.5)]))
|
|
->outputMap(#fromDist(#toFloat(#Mean)))
|
|
->toFloat
|
|
->toExt
|
|
expect(result)->toBeCloseTo(15.28)
|
|
})
|
|
})
|
|
|
|
describe("toPointSet", () => {
|
|
test("on symbolic normal distribution", () => {
|
|
let result =
|
|
run(#fromDist(#toDist(#toPointSet), normalDist))
|
|
->outputMap(#fromDist(#toFloat(#Mean)))
|
|
->toFloat
|
|
->toExt
|
|
expect(result)->toBeCloseTo(5.09)
|
|
})
|
|
|
|
test("on sample set distribution with under 4 points", () => {
|
|
let result =
|
|
run(#fromDist(#toDist(#toPointSet), SampleSet([0.0, 1.0, 2.0, 3.0])))->outputMap(
|
|
#fromDist(#toFloat(#Mean)),
|
|
)
|
|
expect(result)->toEqual(GenDistError(Other("Converting sampleSet to pointSet failed")))
|
|
})
|
|
|
|
Skip.test("on sample set", () => {
|
|
let result =
|
|
run(#fromDist(#toDist(#toPointSet), normalDist))
|
|
->outputMap(#fromDist(#toDist(#toSampleSet(1000))))
|
|
->outputMap(#fromDist(#toDist(#toPointSet)))
|
|
->outputMap(#fromDist(#toFloat(#Mean)))
|
|
->toFloat
|
|
->toExt
|
|
expect(result)->toBeCloseTo(5.09)
|
|
})
|
|
})
|