=sumproduct() likes to work with numbers. The -- stuff changes trues and falses
to 1's and 0's.

Bob Phillips explains =sumproduct() in much more detail he
http://www.xldynamic.com/source/xld.SUMPRODUCT.html

And J.E. McGimpsey has some notes at:
http://mcgimpsey.com/excel/formulae/doubleneg.html

Barb Reinhardt wrote:

Thanks everyone. Can someone explain what the -- in the sumproduct formula
means?

"Bernard Liengme" wrote:

Try =SUMPRODUCT(--(AL3:AL84=date(2006,3,1)),--(AP3:AP84=6))
I am assuming you use US date convention
Confirm with simple ENTER
--
Bernard V Liengme
www.stfx.ca/people/bliengme
remove caps from email

"Barb Reinhardt" wrote in message
...
What am I doing wrong he

=SUMPRODUCT(AL3:AL84="3/1/2006")*(AP3:AP84=6)

I want to count the number of times AL3:AL84 = 3/1/2006 AND AP3:AP84 = 6.
I keep getting ZERO when this is a non zero number. I have entered it
with
CTRL SHIFT ENTER (I think that's it) and it has {} around it.

Thanks,
Barb Reinhardt







--

Dave Peterson