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I'm looking for a function in Excel that looks something like

= MAX(ABS(A1:A10))

Except ABS() doesn't take a range of numbers.

The best that I can come up with is:

= MAX(ABS(MIN(A1:A10),ABS(MAX(A1:A10)))

It does the trick, but it's messy as all heck and I can't believe there's not a better way. Any ideas?

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3 Answers

up vote 11 down vote accepted

You must enter it as an array formula. Do so by pressing Ctrl.+Shift+Enter. The formula will appear as {=MAX(ABS(A1:A10))} if done correctly.

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Note to numb-skulls like myself: Enter the formula then press Ctrl+Shift+Enter, I was trying to press ctrl+shift+enter first, then enter the formula, that didn't really work so well. :P –  Ben Oct 14 '11 at 19:26
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I don't like arrays so I would use the following:

=MAX(-MIN(range), MAX(range))

This works because the only time the absolute of the minimum number would be higher that the maximum value is if it is a negative number.

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This VBA solution works too.

Public Function absMax(values As Range)
    'returns the largest absolute value in a list of pos and neg numbers

    Dim myArray() As Double, i As Integer, numel As Integer
    numel = values.count
    ReDim myArray(1 To numel)
    For i = 1 To numel
        myArray(i) = Abs(values(i))
    Next i
    absMax = WorksheetFunction.Max(myArray)

End Function
  1. Open your VBA editor (Alt+F11)
  2. Insert a new module on the right pane
  3. Copy & paste the code to the module
  4. Go back to Excel and use =absMax(A1:A3)

enter image description here

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