I tried all of these commands and yes, finally, the last one was the right
one. I finally have the sum I want
Thanks to all of you and a particular thank you to Dave
Jeanne


"Dave Peterson" wrote:

Columns E and F????

=sumproduct(--(text(e3:e276,"yyyymm")="200701"),--(f3:f276=True))

Adjust the ranges to match--but you can't use whole columns (except in xl2007).

=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

Jeannie wrote:

Hi,
I've been trying for 2 days to make this formula work. I have a spreadsheet
that shows the employees that have been hired and the ones that have left the
company. I need to count how many have arrived for each month.
Column E has the date and Column F has the status (True for arrivals and
False for departures).
I need to have a formula that would combine:
=COUNTIF(E3:E276, "TRUE")
and
=COUNTIF(E3:E276, "2007-01-*") (I'm not sure about the use of the wildcard
in a formula)
Any help would be greatly appreciated
Thanks
Jeanne

--

Dave Peterson