Hello Biff,

Fair enough.

It's easy for me to watch out for COUNT(1/FREQUENCY()), SUM(...
(FREQUENCY()) or SUMPROUCT(()/COUNTIF()) suggestions and to point out
what Charles already stated some time ago. I cite him at:
http://sulprobil.com/html/count_unique.html

There are no useless posts. They can still serve as a bad example.

Regards,
Bernd