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# scipy.io.netcdf.netcdf_file.createVariable

`netcdf_file.``createVariable`(name, type, dimensions)

  Create an empty variable for the `netcdf_file` object, specifying its data type and the dimensions it uses.

  Parameters: | name : str Name of the new variable. type : dtype or str Data type of the variable. dimensions : sequence of str List of the dimension names used by the variable, in the desired order.
  Returns: | variable : netcdf_variable The newly created `netcdf_variable` object. This object has also been added to the `netcdf_file` object as well.

  See also

  `createDimension`

  Notes

  Any dimensions to be used by the variable should already exist in the NetCDF data structure or should be created by `createDimension` prior to creating the NetCDF variable.