Is there existing macros or functions that I can perform the following
sampling logic?

I have a file with 500K transactions. Would like to start with a number and
select one transaction every 30 records. The total number of selected
transactions are 2000.

Thanks.

Assuming records are in each row and the first record is in cell A1,
try something like:

Sub Sample2000Step30()
Dim i As Integer
For i = 1 To 2000
Cells(i * 30, 1).Select
'your code here
Next i
End Sub

Milo,

Do you really mean *500k *transactions? If so you'll probably have t
wait till Excel12 which will accomodate that number with another 500
to spare.

But if you still want to force the issue you may want to spread you
data over 8 worksheets and then adjust your looping code thus:
Sub N()

Sub m()

For i = 1 To 500000 Step 30

j = i \ 65336

Sheets(j + 1).Cells(i, 2).select

Next
End Sub

Myle

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Sorry, my code is modified to:

Sub m()

For i = 1 To 500000 Step 30

j = i \ 65336
n = i Mod 65536

Sheets(j + 1).Cells(n, "A").select
<Do whatever

Next

End Sub

Tried and tested.

Myles

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