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NOTICE: This version of the NSF Unidata web site (archive.unidata.ucar.edu) is no longer being updated.
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To learn about what's going on, see About the Archive Site.
Hi Dave, Thanks. This is exactly what I am looking for. best simon On Thu, Sep 2, 2010 at 6:00 PM, Dave Allured <dave.allured@xxxxxxxx> wrote: > Simon, > > "Best way" depends on what software you have installed, how often you need > to convert, file size, style preferences, etc. Here are some reasonable > alternatives; there are other ways. > > 1. If you have NCO installed, use the ncap2 type conversion feature. > > http://nco.sourceforge.net/nco.html#Manual-type-conversion > > 2. Use ncdump to convert the file to CDL text, then edit using sed or your > choice of stream editor. > > ncdump infile.nc | sed -e 's/double varname(/float varname(/' \ > > temp.cdl > ncgen -o outfile.nc temp.cdl > > 3. For "small" files, do the same as (2), except use a manual text editor > instead of sed. This may be the most expedient if you also need to fiddle > with attributes or other metadata. > > With all methods, you may also need to perform type conversion on > attributes directly related to the data variable, in particular _FillValue, > missing_value, and/or valid_range. > > --Dave A. > NOAA/PSD/CIRES > > > On 9/1/2010 3:40 PM, Simon Su wrote: > >> Hi All, >> >> What would be the best way to convert a variable type within a netcdf >> file? >> I need to change a variable of the type double to float within a netcdf >> file. >> >> thanks >> Simon >> > > _______________________________________________ > netcdfgroup mailing list > netcdfgroup@xxxxxxxxxxxxxxxx > For list information or to unsubscribe, visit: > http://www.unidata.ucar.edu/mailing_lists/
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