No need to write a function, you can use a combination of average and if
as an example

=AVERAGE(IF(Range=criteria,Range))

entered with ctrl + shift & enter


Regards,

Peo Sjoblom

"davidad" wrote:

Is anybody out there aware of an "AVERAGEIF" function ?.
I'm new to programming and have failed miserably trying to
write it. Any help would be great.