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Tip of the Day
Language: VB4,VB5,VB6,VBS
Expertise: beginner
Dec 23, 2000

ArrayMax - The value and index of highest element in an array of any type

' Return the maximum value in an array of any type
'
' FIRST and LAST indicate which portion of the array
' should be considered; they default to the first
' and last element, respectively
' If MAXINDEX is passed, it receives the index of the
' maximum element in the array

Function ArrayMax(arr As Variant, Optional ByVal First As Variant, _
    Optional ByVal Last As Variant, Optional MaxIndex As Long) As Variant
    Dim Index As Long
    
    If IsMissing(First) Then First = LBound(arr)
    If IsMissing(Last) Then Last = UBound(arr)

    MaxIndex = First
    ArrayMax = arr(MaxIndex)

    For Index = First + 1 To Last
        If ArrayMax < arr(Index) Then
            MaxIndex = Index
            ArrayMax = arr(MaxIndex)
        End If
    Next
End Function
Marco Bellinaso
 
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