# cf.Variable.valid_range

`Variable.``valid_range`

  The valid_range CF property.

  The smallest and largest valid values the data. See http://cfconventions.org/latest.html for details.

  Stored as a tuple but may be set as any array-like object.

  Examples: |

      >>> f.valid_range = numpy.array([100., 400.])
      >>> f.valid_range
      (100.0, 400.0)
      >>> del f.valid_range

      >>> f.setprop('valid_range', [100.0, 400.0])
      >>> f.getprop('valid_range')
      (100.0, 400.0)
      >>> f.delprop('valid_range')