Hi!

Assume this table is on Sheet1:

Category 1 2/23/2005 1.23
Category 2 2/27/2005 5.21
Category 1 2/28/2005 3.67

Enter the coulmn headers: FEB-2005, FEB-2006

as TEXT entries, not FORMATTED DATES

Enter this formula in B2 then copy across then down:

=SUMPRODUCT(--(Sheet1!$A$1:$A$3=$A2),--(TEXT(Sheet1!$B$1:$B$3,"mmm-yyyy")=B$1),Sheet1!$C$1:$C$3)

Biff

"AC [MVP MCMS]" wrote in message
.com...
I have a table with three columns: category, date, amount. On another
summary sheet, I'm trying to sum up all the amounts based on the category
for each month. So, for example my source data is the following:

Category 1 2/23/2005 1.23
Category 2 2/27/2005 5.21
Category 1 2/28/2005 3.67

And my summary sheet has the following

FEB-2005 FEB-2006
Category 1 <B2 <C2
Category 2 <B3 <C3

Cell B2 would contain the sum of (1.23+2.67) and so on. I've been fighting
with SUMIF and SUMPRODUCT, but I can't get anything to come out. Not sure
if I needed it, but I created a few hidden rows that contain the first and
last date of each month range, but it's not helping. Ideas?

--
-AC [MVP MCMS]
http://www.andrewconnell.com
http://www.andrewconnell.com/mvp