Thinking like a Ferret

To: ferret_users@xxxxxxxxxxxxxxxxxxx
Subject: Thinking like a Ferret
From: Bruce or Jennifer Ford <fordville_bruce@xxxxxxxxx>
Date: Fri, 24 Jan 2003 21:17:21 -0500
Cc: Tom Murphree <tom_murphree@xxxxxxxxxxx>, "Tom Murphree (NPS)" <murphree@xxxxxxxxxxxx>, "Tom Murphree (Yahoo)" <tom_murphree@xxxxxxxxx>
Importance: Normal
Reply-to: bruce@xxxxxxxxxxxxx
Sender: owner-ferret_users@xxxxxxxxxxxxxxxxxxx

Ferreters,
         I have some simple calculations that I can't seem to get scalar
values for.  For instance, using NetCDF global files, how can I get a scalar
value (to use in curve-fitting coefficient calculations to place a best-fit
line on a scatter plot) for:

sum of x*y  (x*y for each gridpoint, then sum them.  It's the summing for a
scalar that is problematic)

n  (count the number of gridpoints in a given region return a scalar)

Any help is appreciated!


Bruce



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