reading variable attributes

Hello all,

I have this idea that by adding min/max values for variables as
attributes in the netCDF file I might be able to save time later when
trying to create consistent colorbars/contouring, i.e., my script just
reads the attribute instead of crunching through all the data. Some
experience has suggested I won't actually be saving anything since it
seems to be taking just as long to read the attributes as it does to
read the whole var (though it will still be nice to have the stats
easily viewable as attributes...). Hence my actual question: does NCL
have to read the whole var to get its attributes? I wouldn't have
thought the netCDF data model would require this but I'm not an expert.
And it's also possible something else is still slowing it down, I
haven't had a chance to really dig into this much.

Thanks,
Dave

-- 
Associate Research Professor of Climatology
Dept of Earth and Environmental Science
MSEC 304; 801 Leroy Place
New Mexico Tech
Socorro, NM 87801
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