diff --git a/packages/squiggle-lang/src/rescript/Distributions/PointSetDist/PointSetDist.res b/packages/squiggle-lang/src/rescript/Distributions/PointSetDist/PointSetDist.res
index d5fa99b6..e4e443fe 100644
--- a/packages/squiggle-lang/src/rescript/Distributions/PointSetDist/PointSetDist.res
+++ b/packages/squiggle-lang/src/rescript/Distributions/PointSetDist/PointSetDist.res
@@ -173,7 +173,7 @@ let cdf = T.Integral.xToY
 let toSparkline = (buckets: int, t: t ): string => {
   let size : float = T.maxX(t) -. T.minX(t)
   let stepSize = size /. Belt.Int.toFloat(buckets)
-  let cdfImage = E.A.rangeByFloat(~step=stepSize, T.minX(t), T.maxX(t)) -> Belt.Array.map(val => cdf(val,t))
+  let cdfImage = E.A.rangeFloat(~step=stepSize, T.minX(t), T.maxX(t)) -> Belt.Array.map(val => cdf(val,t))
   Sparklines.create(E.A.diff(cdfImage), ())
 }
 
diff --git a/packages/squiggle-lang/src/rescript/Utility/E.res b/packages/squiggle-lang/src/rescript/Utility/E.res
index b3119da3..30b48881 100644
--- a/packages/squiggle-lang/src/rescript/Utility/E.res
+++ b/packages/squiggle-lang/src/rescript/Utility/E.res
@@ -289,16 +289,14 @@ module A = {
       ))
       |> Rationale.Result.return
     }
-  let rangeFloat = (~step=1, start, stop) =>
-    Belt.Array.rangeBy(start, stop, ~step) |> fmap(Belt.Int.toFloat)
 
   let diff = (arr: array<float>): array<float> =>
     Belt.Array.zipBy(arr, Belt.Array.sliceToEnd(arr, 1), (left, right) => right -. left)
 
-  let rec rangeByFloat = (~step: float=1.0, start : float, end: float) : array<float> => 
+  let rec rangeFloat = (~step: float=1.0, start : float, end: float) : array<float> => 
     start > end ?
       []
-      : Belt.Array.concat([start], rangeByFloat(~step, start +. step, end))
+      : Belt.Array.concat([start], rangeFloat(~step, start +. step, end))
 
   // This zips while taking the longest elements of each array.
   let zipMaxLength = (array1, array2) => {