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[Support #TYN-980459]: netcdf4: nco_[put/get]_att_string(),

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  • Subject: [Support #TYN-980459]: netcdf4: nco_[put/get]_att_string(),
  • Date: Thu, 12 Jul 2007 05:48:09 -0600
> Hi Ed,
>
> > I have never tried to deflate a scalar value! I will make up a test for
that to see if HDF5 allows it.
>
> Thanks.
>
> > Deflate is known to work for arrays, however.
>
> Yes, deflating arrays works for me.
> Please understand that when NCO deflates a file it attempts to
> deflate all variables, even scalars.
> I can code around un-supported cases (e.g., scalars)
> if you let me know what they are.
>
> > I will let you know when I have that string stuff for you...
>
> Thanks.
>
> Charlie
> --
> Charlie Zender, address@hidden, Department of Earth System Science
> 3228 Croul Hall, UC Irvine, Irvine CA 92697-3100. (949) 824-2987 :)
>
>

Howdy Charlie!

From my experiments in HDF5, it looks like there is no way to assign chunking
for a scalar, and you need chunking for compression (or any other filter) to
work.

So it looks like there is no way to deflate a scalar, just as you found in
NetCDF-4.

I am confirming this with the HDF5 guys, and have updated the documentation to
reflect it.

Thanks!

Ed

Ticket Details
===================
Ticket ID: TYN-980459
Department: Support netCDF
Priority: Critical
Status: Closed