Excel formula - sometimes array formula, sometimes not

Posted by Jonas on Super User See other posts from Super User or by Jonas
Published on 2010-06-30T21:00:22Z Indexed on 2010/12/30 16:56 UTC
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excel

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formula

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array

I want to write some data to an Excel file, and I want the first page to show a summary of the data that are spread all over the sheets. The individual data items on a sheet can be included or excluded, and I want the summary to be calculated only on the included values.

Thus, I thought I'd use a formula like this to show, for example, an average (for which empty fields shouldn't be counted, either):

=AVERAGE(IF('dataSheet1'!$B:$B=1,IF('dataSheet1'!$I:$I<>"",'dataSheet1'!$I:$I,""),""))

If I have this formula in dataSheet1, everything works fine. If I have this formula in the summary sheet, I need to enter it as an array formula, and I have to specify the exact ranges to make it work. Is there a way (aside from adding the average in dataSheet, and then referencing the result in summary) to make the formula work without having it turn into an array formula?

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