=sumproduct(--(isnumber(c139:c152)),d139:d152)

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


Bob Arnett wrote:

I have a column of figures (D139:D152) and want to add only the numbers that
are next to a cell (C139:C152) with a numerical value (not text). So I used
the formula:

=SUMIF(C139:C152,isnumber,D139:D152)

Since I'm not familiar with SUMIF syntax, I've also tried other variaitions
like:

=SUMIF(C139:C152,isnumber(),D139:D152)
=SUMIF(C139:C152,"isnumber",D139:D152)
=SUMIF(C139:C152,"=isnumber",D139:D152)
=SUMIF(C139:C152,"=isnumber()",D139:D152)
=SUMIF(C139:C152,"isnumber()",D139:D152)

None of these work so what is the proper way of writing this formula?

--

Dave Peterson