Refactored Sparklines.res
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@ -22,13 +22,12 @@ describe("Normal distribution with sparklines", () => {
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let normalDistAtMean5: SymbolicDistTypes.normal = {mean: 5.0, stdev: 2.0}
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let normalDistAtMean10: SymbolicDistTypes.normal = {mean: 10.0, stdev: 2.0}
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let range20Float = E.A.rangeFloat(0, 20) // [0.0,1.0,2.0,3.0,4.0,5.0,6.0,7.0,8.0,9.0,10.0,11.0,12.0,13.0,14.0,15.0,16.0,17.0,18.0,19.0,]
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let range20Float = E.A.rangeFloat(0, 20) // [0.0,1.0,2.0,3.0,4.0,...19.0,]
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let pdfNormalDistAtMean5 = x => Normal.pdf(x, normalDistAtMean5)
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let sparklineMean5 = pdfImage(pdfNormalDistAtMean5, range20Float)
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makeTest("mean=5", Sparklines.create(sparklineMean5, ()), `▁▂▃▅███▅▃▂▁▁▁▁▁▁▁▁▁▁▁`)
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let sparklineMean15 = normalDistAtMean5 -> parameterWiseAdditionHelper(normalDistAtMean10) -> pdfImage(range20Float)
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// let sparklineMean15 = pdfImage(pdfNormalDistAtMean15, range20Float)
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makeTest("parameter-wise addition of two normal distributions", Sparklines.create(sparklineMean15, ()), `▁▁▁▁▁▁▁▁▁▁▂▃▅▇███▇▅▃▂`)
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})
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@ -269,7 +269,8 @@ module A = {
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))
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|> Rationale.Result.return
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}
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let rangeFloat = (start, stop) => start -> Belt.Array.rangeBy(stop, ~step=1) -> (arr => fmap(Belt.Int.toFloat, arr))
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let rangeFloat = (~step=1, start, stop) =>
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Belt.Array.rangeBy(start, stop, ~step) |> fmap(Belt.Int.toFloat)
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// This zips while taking the longest elements of each array.
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let zipMaxLength = (array1, array2) => {
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@ -324,7 +325,7 @@ module A = {
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}
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)
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let filter = (o, e) => Js.Array.filter(o, e)
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let joinWith = (fill, arr) => Js.Array.joinWith(fill, arr)
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let joinWith = Js.Array.joinWith
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module O = {
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let concatSomes = (optionals: array<option<'a>>): array<'a> =>
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@ -407,6 +408,7 @@ module A = {
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: {
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let _ = Js.Array.push(element, continuous)
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}
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()
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})
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@ -3,26 +3,24 @@
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// Omitting rgb "fire" style, so no `chalk` dependency
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// Omitting: NaN handling, special consideration for constant data.
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let create = (
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numbers: array<float>,
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~minimum=?,
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~maximum=?,
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()
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) => {
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let ticks = [`▁`, `▂`, `▃`, `▄`, `▅`, `▆`, `▇`, `█`]
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let ticks = [`▁`, `▂`, `▃`, `▄`, `▅`, `▆`, `▇`, `█`]
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let minimum = E.O.default(Js.Math.minMany_float(numbers), minimum)
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let maximum = E.O.default(Js.Math.maxMany_float(numbers), maximum)
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let _ticksLength = E.A.length(ticks)
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let toHeight = (number: float) => {
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let tickIndex = Js.Math.ceil_int((number /. maximum) *. (ticks -> Belt.Array.length -> Belt.Int.toFloat)) - 1
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let tickIndex = if maximum == 0.0 || tickIndex < 0 {
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0
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} else {
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tickIndex
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}
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ticks[tickIndex]
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}
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toHeight -> E.A.fmap(numbers) -> (arr => E.A.joinWith("", arr))
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let _heightToTickIndex = (maximum: float, v: float) => {
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let v = Js.Math.ceil_int(v /. maximum *. Belt.Int.toFloat(_ticksLength)) - 1
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min(v, 0)
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}
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let create = (relativeHeights: array<float>, ~maximum=?, ()) => {
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if E.A.length(relativeHeights) === 0 {
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""
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} else {
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let maximum = maximum |> E.O.default(E.A.max(relativeHeights) |> E.O.toExn(""))
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relativeHeights
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|> E.A.fmap(_heightToTickIndex(maximum))
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|> E.A.fmap(r => E.A.get(ticks, r) |> E.O.toExn(""))
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|> E.A.joinWith("")
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}
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}
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