Biff,

Yes they are real dates....the formula beow works so thanks for that....

"Biff" wrote:

Hi!

Range Sep-06 Oct-06
Date Sep-06 Oct-06 Nov-06

Are those real dates?

=AVERAGE(IF((B2:D2=$B$1)*(B2:D2<=$C$1),B2:D2))

Biff

"Brendan Vassallo" wrote in
message ...
Hi All,

I am trying to write an array formula that calculates the average of an
array for a range of dates.

I have the following spreadsheet set up:

A B C D
1 Range Sep-06 Oct-06
2 Date Sep-06 Oct-06 Nov-06
3 Amount $500,000.00 $550,000.00 $600,000.00

I am using the following formula:

{=AVERAGE(IF(AND((B2:D2)=$B$1,(B2:D2)<=$C$1),B3:D 3))}

The problem is that the formula is returning $0.00. I have tried many
variations of this but with no luck.

Can anyone help me write an array formula that will calculate the average
of
the amount for the given range....i.e. for the range specified above the
formula should return $$525,000.

I hope I am making sense....please help.

Brendan