# Excel SumSq and SumIf

Quick question,

Is there any way to combine the SumSq function with SumIf?  I have stuff like this:

1    12
1    13
1     5
2    46
2    78
2    45

I'm trying to sum the squares of just "1" for example.  I could do it in another worksheet but it would be cooler if I could combine SUMSQ and SUMIF someway.  Not sure if there is any good way to do it though.
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VBA DeveloperCommented:
Try using Sumproduct:

=SUMPRODUCT((\$A\$1:\$A\$6=1)*(1))*SUMSQ(1)
=SUMPRODUCT((\$A\$1:\$A\$6=2)*(1))*SUMSQ(2)
=SUMPRODUCT((\$A\$1:\$A\$6=3)*(1))*SUMSQ(3)
etc.

See attached.
Book2.xls
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Author Commented:
Nice idea, thank you.
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Author Commented:
FYI to other who might read this, I modified the code a little to reflect squaring a second column:

=SUMPRODUCT((H13:H18=1)*1,(I13:I18)^2) etc
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