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http://xldynamic.com/source/xld.SUMPRODUCT.html
http://www.mcgimpsey.com/excel/formulae/doubleneg.html -- David Biddulph "sonic-the-mouse" wrote in message ... Been playing about with the SUMPRODUCT formula and input =SUMPRODUCT(--(A2:A10=E1),--(A2:A10<=E2),--(D2:D10=1)) The < signs appear to be returning the correct answer! So I fully understand the formula can you explain what the "--" signifies, please? s-t-m sonic-the-mouse;3360456 Wrote: Checked all dates and they are true dates in excel, however SUMPRODUCT is still returning zeros. In F1 I am using =COUNTIF(a2:a10,"="&E1)-COUNTIF(a2:a10,""&e2) to return the number of incidents between the dates, but still cannot work out how to find out how many of those incidents have taken longer than 3 days to process. Any advice? s-t-m -- sonic-the-mouse |
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