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Input validation for cauchy

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Value: [0.01 to 0.08]

Sam gets most of the credit
This commit is contained in:
Quinn Dougherty 2022-04-26 16:58:36 -04:00
parent 1f27ef894c
commit b9c8a7e2c7
1 changed files with 4 additions and 3 deletions
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7
packages/squiggle-lang/src/rescript/Distributions/SymbolicDist/SymbolicDist.res
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@ -86,9 +86,10 @@ module Exponential = {
module Cauchy = {
type t = cauchy
let make = (local, scale): result<symbolicDist, string> => Ok(
#Cauchy({local: local, scale: scale}),
)
let make = (local, scale): result<symbolicDist, string> =>
scale > 0.0
? Ok(#Cauchy({local: local, scale: scale}))
: Error("Cauchy distribution scale parameter must larger than 0.")
let pdf = (x, t: t) => Jstat.Cauchy.pdf(x, t.local, t.scale)
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)