Re: [libreoffice-users] spreadsheet - sum one column based on the value of other

Brian Barker wrote:
> At 12:58 08/09/2013 -0300, Bruno Schneider wrote:
(omissions for brevity)
> =SUMPRODUCT(B$2:B$5=E1;C$2:C$5)
> so you can fill this down into F2.
>
> How does this second method work?  Well, the test of equality gives a
> value which can be interpreted as a number: 1 for TRUE and 0 for
> FALSE.  Multiplying this by your "value" switches each value on or off
> in the sum.
>
> I trust this helps.
>
> Brian Barker
Typo found :  switch the B's and C's so that the function reads:
    =SUMPRODUCT(C$2:C$7,E1=B$2:B$7)
and it works.
Thanks ... I did enjoy that, and I learned something!
Regards
Fred James



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