I want to only return a correlation number if there are numbers in both B245 and KA 245. I assume I would use an IF and an AND argument, but can't figure it out. This is what I have so far.
=IF(ISNUMBER(B245),CORREL(B245:B256,$KA$245:$KA$256),"X")
=IF(ISNUMBER(B245),CORREL(B245:B256,$KA$245:$KA$256),"X")