# cf.Field.sum

`Field.``sum`()

  The sum of the data array.

  See also

  `collapse`, `max`, `mean`, `mid_range`, `min`, `range`, `sample_size`, `sd`, `var`

  Examples 1: |

      >>> d = f.sum()

  Returns: | out: `cf.Data` The sum of the data array.
  Examples 2: |

      >>> f.data
      <CF Data: [[[236.512756348, ..., 256.93371582]]] K>
      >>> f.sum()
      27544016.7413
      >>> f.sum().data
      <CF Data: 27544016.7413 K>