Netcdf output with non-numeric datatyep

Dear NCL,

I have a variable named *allmode(mode,time)*. For the dimension *mode*, I'd like to assign string value (/"Original value","Component 1","Component 2","Component 3","Component 4"/) instead of numeric value (/0,1,2,3,4/). Then, I try to write this variable into a Netcdf file. I wrote:
> fout = "out.nc"
> system("/bin/rm -f "+fout)
> setfileoption( "nc", "format", "netcdf4" )
> ncdf = addfile(fout,"c")
> ncdf->mode = allmode

However, file can not be created successfully, with error information as:
warning:FileReadVarAtt: _FillValue attribute type differs from variable (mode) type in file (out), forcing type conversion; may result in overflow and/or loss of precision
ncclose: ncid 393216: NetCDF: Can't open HDF5 attribute

Does any has ideas how to write this file out?

Regards,
Liang

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Received on Mon Apr 07 08:18:20 2014