diff options
Diffstat (limited to 'lib/pure/math.nim')
| -rw-r--r-- | lib/pure/math.nim | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/lib/pure/math.nim b/lib/pure/math.nim index aa64933fb..0051c9d88 100644 --- a/lib/pure/math.nim +++ b/lib/pure/math.nim @@ -114,10 +114,13 @@ proc sum*[T](x: openArray[T]): T {.noSideEffect.} = ## If `x` is empty, 0 is returned. for i in items(x): result = result + i -proc mean*(x: openArray[float]): float {.noSideEffect.} = +template toFloat(f: float): float = f + +proc mean*[T](x: openArray[T]): float {.noSideEffect.} = ## computes the mean of the elements in `x`. ## If `x` is empty, NaN is returned. - result = sum(x) / toFloat(len(x)) + ## ``toFloat(x: T): float`` must be defined. + result = toFloat(sum(x)) / toFloat(len(x)) proc variance*(x: openArray[float]): float {.noSideEffect.} = ## computes the variance of the elements in `x`. |