Sorry spoke to soon.
the formula worked on a simple test, but then I applied it to the workbook in
question and got this:
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http://img503.imageshack.us/my.php?image=picture1ic7.jpg>
I have a column of 20 or so numbers which have then been totaled using the
Sum tool. and below that I put in this formula to get the monthly average.
but I get this message. what to do now?
kevs -
If you reply to your own original post, it's hard to tell what you mean
by "the formula" that worked in one case but not the other. You should
either reply to the post that gave you the suggestion, or include more
information in your reply.
Most of the people responding to questions aren't using the web
interface that you are, so we don't see the thread the way you do.
That said, the error message indicates that you're getting a circular
reference, which means that the range inside your SUM() function
includes the cell in which you're entering the function.
For instance, if you put
=SUM(A:A)
in cell A10, XL would try to sum all the values in column A, then put
that result in cell A10. But that would then increase the SUM() result.
If XL then tried to put that increased amount in cell A10, the SUM() of
the column would increase again...
So try changing the range to SUM() to not include the cell you're
putting the function into.