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XL 2003 & Sumproduct Question
Hi,
As a subset of my problem, I am trying to figure out what is wrong my sumproduct formula. I am sure that it is something simple. I have the following cells: A1=8; B1=16 A2:B3 = 0 In cell A5, I want the sum of Col A when Col A is less than Col B. I have... =sumproduct(a1:a3<b1:b3, a1:a3) When I use this equation, I get 0. I was expecting 8. When I select and evaluate A1:A3<B1:B3, I get {true; false; false}. When I select and evaluate a1:a3, I get {8;0;0} What am I doing wrong that I am not getting 8 for my answer? Thank you. Kevin |
#2
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XL 2003 & Sumproduct Question
Kevin,
try =SUMPRODUCT(--(A1:A3<B1:B3), A1:A3) or =SUMPRODUCT((A1:A3<B1:B3)*(A1:A3)) Regards, Peo Sjoblom "Kevin H. Stecyk" wrote: Hi, As a subset of my problem, I am trying to figure out what is wrong my sumproduct formula. I am sure that it is something simple. I have the following cells: A1=8; B1=16 A2:B3 = 0 In cell A5, I want the sum of Col A when Col A is less than Col B. I have... =sumproduct(a1:a3<b1:b3, a1:a3) When I use this equation, I get 0. I was expecting 8. When I select and evaluate A1:A3<B1:B3, I get {true; false; false}. When I select and evaluate a1:a3, I get {8;0;0} What am I doing wrong that I am not getting 8 for my answer? Thank you. Kevin |
#3
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XL 2003 & Sumproduct Question
Peo Sjoblom wrote....
Kevin, try =SUMPRODUCT(--(A1:A3<B1:B3), A1:A3) or =SUMPRODUCT((A1:A3<B1:B3)*(A1:A3)) Yes, both work. Thank you. If it isn't too much trouble, can you please remind me why the double negative in the sum product is necessary? Or point me to where this is explained. Again, thank you very much! Best regards, Kevin |
#4
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XL 2003 & Sumproduct Question
http://www.mcgimpsey.com/excel/formulae/doubleneg.html
another thing is that if by some strange coincidence should have a text value in the column that is summed you won't get a value error like you would if you multiply the arrays with each other Peo "Kevin H. Stecyk" wrote: Peo Sjoblom wrote.... Kevin, try =SUMPRODUCT(--(A1:A3<B1:B3), A1:A3) or =SUMPRODUCT((A1:A3<B1:B3)*(A1:A3)) Yes, both work. Thank you. If it isn't too much trouble, can you please remind me why the double negative in the sum product is necessary? Or point me to where this is explained. Again, thank you very much! Best regards, Kevin |
#5
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XL 2003 & Sumproduct Question
Peo Sjoblom wrote...
http://www.mcgimpsey.com/excel/formulae/doubleneg.html another thing is that if by some strange coincidence should have a text value in the column that is summed you won't get a value error like you would if you multiply the arrays with each other Thank you very much!! Best regards, Kevin |
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