[Solved] Create array with a normal distribution


I was curious so I did one.

Sub NDArray()
Dim arr() As Double
a = InputBox("Number of numbers")

ReDim arr(a - 1) As Double
With Application.WorksheetFunction
    'fill the array with random numbers that fit a normal dist
    For i = 0 To a - 1
        '"A/100" is the target mean and "A/200" is target Std. Dev, change to your desire
        arr(i) = .Norm_Inv(.RandBetween(1, 1000) / 10000, a / 100, a / 200)
    Next i
    'change the numbers to percentage of whole and multiply by 100 to get the values to sum to 100
    x = .Sum(arr)
    For i = 0 To a - 1
        arr(i) = (arr(i) / x) * 100
    Next i
    'post the numbers in Column A on the active sheet
    ActiveSheet.Range("A:A").ClearContents
    ActiveSheet.Range("A1").Resize(a).Value = .Transpose(arr)
End With
End Sub

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solved Create array with a normal distribution