# cf.Field.override_units

`Field.``override_units`(units, i=False)

  Override the units.

  The new units need not be equivalent to the original ones and the data array elements will not be changed to reflect the new units. Therefore, this method should only be used when it is known that the data array values are correct but the units have incorrectly encoded.

  Not to be confused with setting `units` or `Units` attributes to units which are equivalent to the original units.

  See also

  `calendar`, `override_calendar`, `units`, `Units`

  Examples 1: |

      >>> g = f.override_units('m')

  Parameters: | units: `str` or `cf.Units` The new units for the data array. i: `bool`, optional If True then update the field in place. By default a new field is created. In either case, a field is returned.
  Returns: | out: `cf.Field`
  Examples 2: |

      >>> f.Units
      <CF Units: hPa>
      >>> f.datum(0)
      100000.0
      >>> f.override_units('km')
      >>> f.Units
      <CF Units: km>
      >>> f.datum(0)
      100000.0
      >>> f.override_units(cf.Units('watts'))
      >>> f.Units
      <CF Units: watts>
      >>> f.datum(0)
      100000.0