To exclude negative values from the sum...

Works in any "modern" version of Excel:

=SUMPRODUCT(--(A2:A278=2000),--(M2:M2780),M2:M278)

If you're using Excel 2007:

=SUMIFS(M2:M278,A2:A278,2000,M2:M278,"0")

--
Biff
Microsoft Excel MVP


"Terry" wrote in message
...
I am trying to sum a column of both negative and positive numbers on
another
worksheet based on two conditions. I have tried to construct an array that
would =Sum(if((A2:A278,="2000")*(M2:M278,="0"),M2:M278) )

Should that not sum the column M2:M278 positive integers based on the
criteria that all rows in A2:A278 are equal to "2000".???



"Minx" wrote:

If you could follow that...
I have a number of columns of information for any given row. I would like
to
set up a sheet that will sum Column C for all rows IF Column A = {a given
value} AND Column D = {a different given value}. I may even need to throw
in
that Column B = {another given value}. Can I do this and how?

I've run across something about VLOOKUP, but I'm not sure how to make
that
work. I'm primarily a CAD operator making brief forays into Excel, and I
keep
thinking it has got to be easier than all the manual sorting I'm
currently
doing.

I'm using Excel 2003 (on Windows XP SP2)