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MS Excel - working with Arrays and looping through code

Posted on 2006-07-18
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Last Modified: 2010-04-30
I am trying to create an array from two values. For example, lets say cell A1 = 5 and B1 = 7. I want code that examines the two values, identifies the smallest, creates an array that counts from the smallest down to 0, while increasing the largest at the same time:

5   7
4   8
3   9
2   10
1   11
0   12

My code is not working, and I am coming up with some funny values. What am I doing wrong?  Here is my code:

Function createArray(cellA, cellB)

Dim MPos1, getMin, myNewArray(100, 2), rw, prw
Dim myArray(100, 2)

    If cellA <= cellB Then
        MPos1 = 1
        getMin = cellA
    Else
        MPos1 = 2
        getMin = cellB
    End If
   
myNewArray(0, 1) = cellA
myNewArray(0, 2) = cellB

For rw = 1 To getMin

    prw = rw - 1

    If MPos1 = 1 Then myNewArray(rw, 1) = myNewArray(prw, 1) - 1 Else myNewArray(rw, 1) = myNewArray(prw, 1) + 1
    If MPos1 = 1 Then myNewArray(rw, 2) = myNewArray(prw, 1) + 1 Else myNewArray(rw, 1) = myNewArray(prw, 2) - 1
    rw = rw + 1
   
Next

createArray = myNewArray(rw - 1, 2)


End Function
0
Comment
Question by:smehle
  • 2
4 Comments
 
LVL 92

Accepted Solution

by:
Patrick Matthews earned 250 total points
ID: 17135286
Hi smehle,

Function createArray(cellA As Long, cellB As Long)

    Dim myArray() As Long
    Dim First As Long
    Dim Second As Long
    Dim Counter As Long

    If cellA <= cellB Then
        First = cellA
        Second = cellB
    Else
        First = cellB
        Second = cellA
    End If

    ReDim myArray(0 To First, 0 To 1) As Long

    For Counter = 0 To UBound(myArray, 1)
        myArray(Counter, 0) = First - Counter
        myArray(Counter, 1) = Second + Counter
    Next

    createArray = myArray

End Function

Regards,

Patrick
0
 
LVL 9

Expert Comment

by:Naveen Swamy
ID: 17136333
0
 

Author Comment

by:smehle
ID: 17138162
Thank you both, this was driving me NUTS!
0
 
LVL 92

Expert Comment

by:Patrick Matthews
ID: 17138247
You're welcome :)
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