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ncdump Q

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  • Subject: ncdump Q
  • Date: Thu, 03 Jul 2003 14:21:27 -0600
Does ncdump display _FillVAlue as the underscore char?

--Chris



Hi Chris,

I've got a newby question for you...

I am developing software to convert AOC P3 data in standard tape format
to NetCDF. This is the first software I have written to create NetCDF
output.  I have set the attribute _FillValue for each of my variables to
-32767

$attid = NetCDF::attput($ncid, $varid, "_FillValue",NetCDF::FLOAT, -32767);

When I put data into the NetCDF file, then view it using ncdump, values of
-32767 appear as an underscore, i.e.

DV = -375.7, -375.7, ... ,-3257.6, _, _, _, _, _, _, _, _, -3274.7, ...
My variable, DV, is defined as a float as well. My first thought was that the value was too big for the field, but a float should hold values larger than -32767? Do you have any idea why this is happening? Is it supposed to happen, or does it indicate a bug in my code? If it is a bug, any ideas on what might be going wrong? 

Thanks,

Janine

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