[gradsusr] How to get the Sum of variable (not spatially) for all region

Mon Sep 26 05:46:24 EDT 2011

Dear all,

I have monthly data of one year. I used 'define new=sum(var,t=1,t=12)' then
I obtain the sum of the spatial distribution for one year. This is more "in
this point/coordinate, the annual precipitation is xxx mm"

But what I need is the total (sum) of the value of the variable. Something
like: "In this area of 500km2, the annual precipitation is xxx mm".

Is it possible to obtain that?

Best regards

-- 
Serge
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