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tweak: comments

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This commit is contained in:
NunoSempere 2022-04-20 13:22:52 -04:00
parent 10f88b4a2a
commit c8a505dcf0
1 changed files with 7 additions and 6 deletions
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13
packages/squiggle-lang/src/rescript/Distributions/PointSetDist/NumericShapeCombination2.res
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@ -56,7 +56,7 @@ let addContinuousContinuous = (
let lowerBound = mins1xs +. mins2xs
let upperBound = maxs1xs +. maxs2xs
let numIntervals = 2 * Js.Math.max_int(len1, len2)
let numIntervals = 2 * Js.Math.max_int(len1, len2) // 5000
let epsilon = (upperBound -. lowerBound) /. Belt.Int.toFloat(numIntervals) // Js.Math.pow_float(~base=2.0, ~exp=-16.0)
let newXs: array<float> = Belt.Array.makeUninitializedUnsafe(numIntervals)
@ -70,13 +70,14 @@ let addContinuousContinuous = (
// The AMD Ryzen 7 processor in my computer can do around 300K million operations per second.
// src: https://wikiless.org/wiki/Instructions_per_second?lang=en#Thousand_instructions_per_second_(TIPS/kIPS)
for i in 0 to numIntervals - 1 {
newXs[i] = lowerBound +. float(i) *. epsilon
// where are the x points in the resulting distribution
let z = lowerBound +. float(i) *. epsilon
newXs[i] = z
newYs[i] = 0.0
for j in 0 to numIntervals - 1 {
let deltaYi =
getApproximatePdfOfS1AtPoint(lowerBound +. float(j) *. epsilon) *.
getApproximatePdfOfS2AtPoint(float(i) *. epsilon -. float(j) *. epsilon)
// lowerBound +. float(i) *. epsilon - (lowerBound +. float(j) *. epsilon)
// how fine-grained do we want our approximation of the integral to be.
let x = lowerBound +. float(j) *. epsilon
let deltaYi = getApproximatePdfOfS1AtPoint(x) *. getApproximatePdfOfS2AtPoint(z -. x)
newYs[i] = newYs[i] +. deltaYi
}
}