# numpy.ma.getmaskarray

ma.getmaskarray(arr)

  Return the mask of a masked array, or full boolean array of False.

  Return the mask of arr as an ndarray if arr is a `MaskedArray` and the mask is not `nomask`, else return a full boolean array of False of the same shape as arr.

  Parameters:
    arr array_like

      Input `MaskedArray` for which the mask is required.

  See also

  `getmask`

    Return the mask of a masked array, or nomask.

  `getdata`

    Return the data of a masked array as an ndarray.

  Examples

      >>> import numpy.ma as ma
      >>> a = ma.masked_equal([[1,2],[3,4]], 2)
      >>> a
      masked_array(
        data=[[1, --],
              [3, 4]],
        mask=[[False,  True],
              [False, False]],
        fill_value=2)
      >>> ma.getmaskarray(a)
      array([[False,  True],
             [False, False]])

  Result when mask == `nomask`

      >>> b = ma.masked_array([[1,2],[3,4]])
      >>> b
      masked_array(
        data=[[1, 2],
              [3, 4]],
        mask=False,
        fill_value=999999)
      >>> ma.getmaskarray(b)
      array([[False, False],
             [False, False]])