Array.averageBy<'T,^U> Function (F#)
Returns the average of the elements generated by applying the function to each element of the array.
Namespace/Module Path: Microsoft.FSharp.Collections.Array
Assembly: FSharp.Core (in FSharp.Core.dll)
Array.averageBy : ('T -> ^U) -> 'T  -> ^U (requires ^U with static member (+) and ^U with static member DivideByInt and ^U with static member Zero)
Array.averageBy projection array
'T -> ^U
The function to transform the array elements before averaging.
The input array.
This function is named
AverageBy in compiled assemblies. If you are accessing the function from a language other than F#, or through reflection, use this name.
The following example illustrates the use of
let avg2 = Array.averageBy ( fun elem -> float elem) [|1 .. 10|]
printfn "%f" avg2
Windows 8, Windows 7, Windows Server 2012, Windows Server 2008 R2
F# Core Library Versions
Supported in: 2.0, 4.0, Portable