SumProduct over sets of cells (not contiguous)

Question

I have a total data set that is for 4 different groupings. One of the values is the average time, the other is count. For the Total I have to multiply these and then divid

Answer 1

I agree with the comment "It might be possible with masterful excel-fu, but even if it can be done, it's not likely to be more readable than your original solution"

A possible solution is to embed the CHOOSE() function within your SUMPRODUCT (this trick actually is pretty handy for vlookups, finding conditional maximums, etc.).

Example: Let's say your data has eight observations and is in two columns (columns B and C) but you don't want to include some observations (exclude observations in rows 4 and 5). Then the SUMPRODUCT code looks like this...

=SUMPRODUCT(CHOOSE({1,2},A1:A3,A6:A8),CHOOSE({1,2},B1:B3,B6:B8))

I actually thought of this on the fly, so I don't know the limitations and as you can see it is not that pretty.

Hope this helps! :)