Delete netCDF attribute
netcdf.delAtt(ncid,varid,attName) deletes the attribute identified by the text string attName.
ncid is a netCDF file identifier returned by netcdf.create or netcdf.open.
varid is a numeric value that identifies the variable. To delete a global attribute, use netcdf.getConstant('GLOBAL') for the varid. You must be in define mode to delete an attribute.
This function corresponds to the nc_del_att function in the netCDF library C API. To use this function, you should be familiar with the netCDF programming paradigm. See netcdf for more information.
This example opens a local copy of the example netCDF file included with MATLAB®, example.nc.
% Open a netCDF file. ncid = netcdf.open('my_example.nc','NC_WRITE') % Determine number of global attributes in file. [numdims numvars numatts unlimdimID] = netcdf.inq(ncid); numatts = 1 % Get name of attribute; it is needed for deletion. attname = netcdf.inqAttName(ncid,netcdf.getConstant('NC_GLOBAL'),0) % Put file in define mode to delete an attribute. netcdf.reDef(ncid); % Delete the global attribute in the netCDF file. netcdf.delAtt(ncid,netcdf.getConstant('GLOBAL'),attname); % Verify that the global attribute was deleted. [numdims numvars numatts unlimdimID] = netcdf.inq(ncid); numatts = 0