# cf.Field.all

`Field.``all`()

  Test whether all data array elements evaluate to True.

  Performs a logical and over the data array and returns the result. Masked values are considered as True during computation.

  See also

  `any`

  Examples 1: |

      >>> x = f.all()

  Returns: | out: `bool` Whether ot not all data array elements evaluate to True.
  Examples: |

      >>> print f.array
      [[0 3 0]]
      >>> f.all()
      False

      >>> print f.array
      [[1 3 --]]
      >>> f.all()
      True