numpy.ma.getdata

numpy.ma.getdata(a, subok=True)[源代码]

Return the data of a masked array as an ndarray.

Return the data of a (if any) as an ndarray if a is a MaskedArray, else return a as a ndarray or subclass (depending on subok) if not.

Parameters:
a : array_like

Input MaskedArray, alternatively a ndarray or a subclass thereof.

subok : bool

Whether to force the output to be a pure ndarray (False) or to return a subclass of ndarray if appropriate (True, default).

参见

getmask
Return the mask of a masked array, or nomask.
getmaskarray
Return the mask of a masked array, or full array of False.

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=999999)
>>> ma.getdata(a)
array([[1, 2],
       [3, 4]])

Equivalently use the MaskedArray data attribute.

>>> a.data
array([[1, 2],
       [3, 4]])