netcdf.inqVarChunking

Return chunking parameters for netCDF variable

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    Syntax

    [storage,chunkSizes] = netcdf.inqVarChunking(ncid,varid)

    Description

    [storage,chunkSizes] = netcdf.inqVarChunking(ncid,varid) returns the chunking parameters for the netCDF variable specified by varid in the file or group specified by ncid.

    example

    Examples

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    Open the sample netCDF file, and get chunking parameters for a variable. In this case, the specified variable is stored in 360-by-180-by-1 chunks.

    ncid = netcdf.open("example.nc","NOWRITE");
gid = netcdf.inqNcid(ncid,"grid1");
varid = netcdf.inqVarID(gid,"temp");
[storage,chunkSizes] = netcdf.inqVarChunking(gid,varid)

    storage =

    'chunked'


chunkSizes =

   360   180     1

    Close the netCDF file.

    netcdf.close(ncid)

    Input Arguments

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    NetCDF file or group identifier, specified as a nonnegative integer scalar. You can use the netcdf.create or netcdf.open function to return a file identifier. You can use the netcdf.defGrp function to return a group identifier.

    Data Types: double

    NetCDF variable identifier, specified as a nonnegative integer scalar. You can use the netcdf.defVar function to return a variable identifier.

    Data Types: double

    Output Arguments

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    Chunk type of the netCDF variable, returned as 'chunked' or 'contiguous'.

    Dimensions of chunk of the netCDF variable, returned as a positive integer array, or [] if storage is 'contiguous'.

    Because MATLAB® uses column-major ordering, the order of dimensions in chunkSizes is reversed relative to what would be observed in the netCDF C API.

    Tips

    • This function corresponds to the nc_inq_var_chunking function in the netCDF library C API.

    Version History

    Introduced in R2010b

    See Also

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