Sum if not blank
I'm trying to sum 3 columns, if they are not blank (I am currently using the following formula:
=ISBLANK(SUMIF(Likelihood@row:Proximity@row, >0, Likelihood@row:Proximity@row), " ")
However, I'm getting a #incorrectargumentset error. I think it's something to do with my brackets, but what am I doing wrong?
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