# cf.Coordinate.identity

`Coordinate.``identity`(default=None, relaxed_identity=None)

  Return the identity of the coordinate.

  The identity is, by default, the first found of the following:

  - The `standard_name` CF property.
  - The `id` attribute.
  - If the relaxed parameter is True, the `standard_name` CF property.
  - The `id` attribute.
  - The value of the default parameter.

  This is altered if the relaxed parameter is True.

  See also

  `name`

  Examples 1: |

      >>> i = f.identity()

  Parameters: | default: optional The identity if one could not otherwise be found. By default, default is `None`.
  Returns: | out: The identity.
  Examples 2: |

      >>> f.standard_name = 'Kelvin'
      >>> f.id = 'foo'
      >>> f.identity()
      'Kelvin'
      >>> del f.standard_name
      >>> f.identity()
      'foo'
      >>> del f.id
      >>> f.identity()
      None
      >>> f.identity('bar')
      'bar'
      >>> print f.identity()
      None