cfdm.Data.mask

Data.mask

The boolean missing data mask of the data array.

The boolean mask has True where the data array has missing data and False otherwise.

Returns:
Data

TODO

Examples:

>>> d = Data(numpy.ma.array([[280.0,   -99,   -99,   -99], 
                             [281.0, 279.0, 278.0, 279.5]], 
             mask=[[0, 1, 1, 1], 
                   [0, 0, 0, 0]]))
 >>> d
 <Data(2, 4): [[280.0, ..., 279.5]]>
 >>> print(d.array)
 [[280.0    --    --    --]
  [281.0 279.0 278.0 279.5]]
 >>> d.mask
 <Data(2, 4): [[False, ..., False]]>
 >>> print(d.mask.array)
 [[False  True  True  True]
  [False False False False]]