.. highlightlang:: us

.. index:: nc_redef

.. _nc_redef:

nc_redef
========

.. us.tag  nc_redef ENGLISH NC

:ref:`nc_redef` puts an open netCDF file into define mode, so dimensions, 
variables, and attributes can be added or renamed and attributes can be deleted.

.. function::  r = nc_redef(ncid)

.. us.return

**Return Value**

If the function succeeds, the return value is not equal to -1. If the function
fails, the return value is -1.

.. us.params

**Parameters**

.. uparam:: ncid

   Identifies the netCDF file.

.. seealso::
   :ref:`overview-netcdf-files`,
   :ref:`nc_create`,
   :ref:`nc_endef`

:sub:`id-735543`