Yes. I was hoping to sum a calculation for n=10 observations or n=20. Each
row has a different total number of observations and I did not want to have a
row for each and sum.

Do you know of an easier way?

Thanks.

"Don Guillett" wrote:

AFAIK-No
Is there a problem with
=sum(a1:z1)

--
Don Guillett
SalesAid Software

"LizM" wrote in message
...
Is it possible to use the summation operator ? in an excel formula?