Thread: Add If ?
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Helge[_2_] Helge[_2_] is offline
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Default Add If ?

Thanks a lot. That helped a lot.

Helge

T. Valko wrote:
Take a look at these:

http://xldynamic.com/source/xld.SUMPRODUCT.html


http://mcgimpsey.com/excel/formulae/doubleneg.html

Biff

"Helge" wrote in message
...
Hi,

I have never used the double negative signs in any formula. I have come
across it in several Q&A in var. userforums though, so however obvious it
may be (to the the rest of you), please excuse my ignorance.

I need an explanation, what is the purpose, and the logics behind, the
double negative signs?

By testing the formula below, I see the effect but I still don't get it
:-(

T.i.a.

Helge

Dave F wrote:
Two options if you don't want to use SUMIF:

1) Use a pivot table. See here for more info:
http://www.cpearson.com/excel/pivots.htm

2) Use SUMPRODUCT: =SUMPRODUCT(--(A1:A100="January"),--(B1:B100)) etc.

Dave