J.E. McGimpsey explains it at his site:
http://mcgimpsey.com/excel/formulae/doubleneg.html



Marc Shivers wrote:

What does the -- in front of the (range1 = "internal") do?

"Meredith" wrote:

Thank you!

"Jason Morin" wrote:

One way:

=SUMPRODUCT(--(range1="internal"),--(range2=6),--
(range2<=10))

HTH
Jason
Atlanta, GA

-----Original Message-----
I would like to look at one column (range1) in excel and
if the word
"internal" appears, I would like to then look to the
next column (range2) and
count the total number of times the value is between 6
and 10...

Internal 8
Internal 2
External 7

So in this data set, I would like my result to be equal
to 1. Both internal
and between 6 and 10. I can do them separately but
cannot figure out how to
combine the 2 formulas...

=COUNTIF(range1, "internal")
=COUNTIF(range2,"<=10")-COUNTIF(range2,"<6")

Any help is greatly appreciated.


.



--

Dave Peterson