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Posted to microsoft.public.excel.worksheet.functions
Leif Leif is offline
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Default Counting on two separate values

Thanks Ken, that works. What is "--"?

"Ken Johnson" wrote:

=SUMPRODUCT(--(MONTH($C$6:$C$53)=MONTH($A$1)),--(YEAR($C$6:$C
$53)=YEAR($A$1)),--($Q$6:$Q$53<31))

Ken Johnson