my problem:
column A contains a unique ID # for a well, in other columns are events for that well. Multiple events occur for each well (multiple rows with same unique ID #)
now I need to put into column B, a sequential number counting each event for each well.
I know I did not describe this well so let me try to show
A B
170570122000 1
170570122100 1
170570122100 2
170570125400 1
170570125400 2
170570125400 3
170570128400 1
170570128400 2
how to auto-generate column B?
Last edited by maynard; 12-09-2010 at 04:08 PM.
Try
=Countif(A$1:A1,A1)
copied down
where A1 is first entry to count.
Where there is a will there are many ways.
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perfect. thank you.
so simple. I kept trying with if/then functions.
Or maybe
=COUNTIF($A:$A,A1)
Drag/Fill down
[EDIT]
I think I missed the point here.
Last edited by Marcol; 12-09-2010 at 04:12 PM.
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Marcol,
That will repeat the same number for each entry.
The OP is looking for a cumulative increasing in count as you go down the column.
Aye, I missed the point to late in noticing, editing as you posted. Thanks.
Hello - this did not work guysOriginally Posted by NBVC
. I am using MS 2010.... has anything changed?
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