netcdf.putAtt(ncid,varid,attrname,attrvalue) writes the attribute named attrname with value attrvalue to the netCDF variable specified by varid. To specify a global attribute, use netcdf.getConstant('NC_GLOBAL') for varid

ncid is a netCDF file identifier returned by netCDF.create or netCDF.open.

This function corresponds to several attribute I/O functions in the netCDF library C API. To use this function, you should be familiar with the information about netCDF contained in the NetCDF C Interface Guide for version 3.6.2.

Examples

This example creates a new netCDF file, defines a dimension and a variable, adds data to the variable, and then creates an attribute associated with the variable. To run this example, you must have writer permission in your current directory.

% Create a variable in the workspace.
my_vardata = linspace(0,50,50);

% Create a netCDF file.
ncid = netcdf.create('foo.nc','NC_WRITE');

% Define a dimension in the file.
dimid = netcdf.defDim(ncid,'my_dim',50);
 
% Define a new variable in the file.
varid = netcdf.defVar(ncid,'my_var','double',dimid);

% Leave define mode and enter data mode to write data.
netcdf.endDef(ncid);

% Write data to variable.
netcdf.putVar(ncid,varid,my_vardata);

% Re-enter define mode.
netcdf.reDef(ncid);

% Create an attribute associated with the variable.
netcdf.putAtt(ncid,0,'my_att',10);

% Verify that the attribute was created.
[xtype xlen] = netcdf.inqAtt(ncid,0,'my_att')

xtype =

     6


xlen =

     1

netcdf.putAtt - Write netCDF attribute

Syntax

Description

Examples

See Also

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