Doh! (slaps forehead).

Interestingly, I made other minor modifications to the sheet, and I'm not
sure what I did, but the whole thing is recalculating an order of magnitude
slower than before (independent of the 2-cell solution below). Looks like I
have some more troubleshooting to do :(

Thanks!

"Gary''s Student" wrote in message
...
Use 2 cells The first for the sumproduct the second for the if
--
Gary''s Student - gsnu200737


"Keith R" wrote:

Is there a way to change the following formula from
=if(calculation result 0, calculate it again, "") to =if(calculation
result
0, use that result, "") ?

=IF(SUMPRODUCT(('Raw Data'!$A$2:$A$30000=$C5)*1,('Raw
Data'!$B$2:$B$30000=I$1)*1)0,SUMPRODUCT(('Raw
Data'!$A$2:$A$30000=$C5)*1,('Raw Data'!$B$2:$B$30000=I$1)*1),"")

Just thinking if there is a clever way to do this, it would cut worksheet
calculation time in half...but I'm not sure how Excel calculates and
stores
this data, so my assuption may be incorrect anyway...

Thanks,
Keith