summing daily data by month

M

Mona

I have this simplified data structure on worksheet1:
A B C
date red blue
01/01/2006 300 100
01/02/2006 200 200
..
01/31/2006 300 300
02/01/2006 100 100
..
02/28/2006 400 200

On worksheet2
A B C D
Item 01/06 02/06 03/06

red ???? ??? ??
blue ???? ??? ??

I am looking to sum all of red by month/year and all of blue by month/year.

Thanks!!
 
T

T. Valko

Try this:

Enter this formula in Sheet2 B2:

=SUMPRODUCT(--(TEXT(Sheet1!$A$2:$A$20,"mmmyyyy")=TEXT(B$1,"mmmyyyy")),INDEX(Sheet1!$B$2:$C$20,,MATCH($A2,Sheet1!$B$1:$C$1,0)))

Copy across then down as needed

Biff
 

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