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SumProduct to count rows

Posted on 2011-03-14
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Last Modified: 2012-06-21
In the attached file I am trying to count the number of rows in my sumproduct formula but it doesn't seem to be working correctly. If you look in cell E6 you can see the formula with the criteria's but when you verify the correct count it's a lot larger than what the formula is saying. Anyone know what is wrong with my formula?
Sample-File.xls
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Question by:Lawrence Salvucci
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nutsch earned 500 total points
ID: 35130808
Why do you divide by the countif?

=SUMPRODUCT((Database!$E$2:$E$7559>=$B6)*(Database!$E$2:$E$7559<=$D6)*(Database!$D$2:$D$7559>=66)*(Database!$B$2:$B$7559<$A$6))

works and matches your data, but then you divide by COUNTIF(Database!$A$2:$A$7559,Database!$A$2:$A$7559&"")

Can you restate your needs if the first formula doesn't address them?

Thanks,

Thomas

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by:Lawrence Salvucci
ID: 35130841
I thought I needed a countif to count the criteria. So a sumproduct counts the number of rows returned with you use the * between criterias?
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Expert Comment

by:nutsch
ID: 35130874
It counts when you don't multiply it by a range of values. Right now, you have =sumproduct(test*test*test*test), each test returns an array of 1s and 0s. When all test conditions are met, you get a line of 1s which multiplied together return 1. If one or more tests aren't met, you get 0, sumproduct then totals all the ones, which gives you the count of rows.

Thomas
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Author Closing Comment

by:Lawrence Salvucci
ID: 35131020
Thank you for the help!
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Expert Comment

by:nutsch
ID: 35131048
Glad to help. Thanks for the grade.

Thomas
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