Question

VBA How to delete multidimensional array elements

Asked by: osknows

The code below loads a range into array where  BAarray is a multidimensional array BAarray(1 TO 10, 1 TO 250)

I want to test BA(x,1) and if it is not an integer delete the entire element or if it is an integer copy the element into another array. I've tried using ReDim but keep getting error 9 subscript of out range.

What is the best way to filter BAarray down to required elements so i can write the new array back to the worksheet once only?

Private Sub Worksheet_Calculate()
Application.EnableEvents = False
 
    If ThisWorkbook.Sheets("Front Page").Range("B1").Value = "Copy" Then
        ThisWorkbook.Sheets("Front Page").Range("O1").Value = GetTickCount
        
            If GetTickCount >= ThisWorkbook.Sheets("Front Page").Range("O2").Value + _
            ThisWorkbook.Sheets("Front Page").Range("F2").Value * 1000 Then
            ThisWorkbook.Sheets("Front Page").Range("O2").Value = GetTickCount
            
 
          
                Set BArange = Range("a6:ip15")
                BAarray = BArange.Value
 
               
            End If
    Else
    ThisWorkbook.Sheets("Front Page").Range("O2").Value = ""
    End If
Application.EnableEvents = True
End Sub

                                  
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Asked On
2009-10-26 at 13:34:31ID24845105
Topics

VB Objects

,

VB Script

Participating Experts
1
Points
500
Comments
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Answers

 

by: thydzikPosted on 2009-10-26 at 22:44:20ID: 25669397

so to clarify.

array BA is (1 to 10, 1 to 10)

when BA(x,y) is an integer, you want to delete BA(1,y), BA(2,y), .., BA(9,1), BA(10,y)
for y = 1 to 10?

 

by: osknowsPosted on 2009-10-27 at 00:35:25ID: 25669840

BAarray is an array containing values in Range("A6:IP15"), so size is BAarray (1 TO 10, 1 To 250).
Therefore row A6:IP6 will be in BAarray(1,1), BAarray(1,2).......BAarray(1,250),

I want to check the array for values in BAarray(1,1), BAarray(2,1)......BAarray(10,1) for an integer, and keep the whole element or check for null and delete.

For example, say range A6:A15 contained:

Null
1
Null
2
Null
.
.
Null

I want my final array to contain the full 2 elements from the original array, in this case BAarray(2,1 TO 250) and BAarray(4,1 TO 250)

I did look at loading just the range containing relevent values into the array but it doesn't work with non-contiguous ranges.

 

by: thydzikPosted on 2009-10-27 at 18:12:32ID: 25679201

code and workbook attached attached. there is now simple way of doing this,

and since it is the rows that are changing, redim of the array on the fly can't occur.

Sub aslkdjfl()
 
Dim a() As Variant
Dim newa() As Variant
 
a = Range("A6:IP15")
 
Dim i As Long, j As Long
'count the number of integers
 
Dim count As Long
count = 0
 
For i = 1 To UBound(a, 1)
    If IsNumeric(a(i, 1)) And Not IsEmpty(a(i, 1)) Then
        If a(i, 1) = Round(a(i, 1)) Then
            count = count + 1
        End If
    End If
 
Next i
 
ReDim newa(1 To count, 1 To UBound(a, 2))
 
count = 0
'populate
For i = 1 To UBound(a, 1)
    If IsNumeric(a(i, 1)) And Not IsEmpty(a(i, 1)) Then
        If a(i, 1) = Round(a(i, 1)) Then
            count = count + 1
            For j = 1 To UBound(a, 2)
                newa(count, j) = a(i, j)
            Next j
            
        End If
    End If
Next i
 
End Sub

                                              
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by: osknowsPosted on 2009-10-28 at 04:53:00ID: 25682183

Excellent - thank you very much

20120131-EE-VQP-002

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