Calculating an average with conditions.

  • Thread starter Thread starter Guest
  • Start date Start date
G

Guest

I have two columns of data, one of which I need to calculate an average of
but only if the data in the 2nd column is of a certain value.
I can't work out how to do this...
For instance, I need to calculate the average number of calls taken within
week 37.
My columns look similar to:
No. of calls Week no.
10 37
8 38
4 37 etc
 
This is an array formula that must be entered using ctrl+shift+enter at the
same time.

=AVERAGE(IF(M1:M3=37,L1:L3))
 
This is returning #DIV/0!

Is this because the "No. of calls" column is also subject to a formula?
 
Worked on the data provided. Send me a workbook to the address below along
with these posts
 
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