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/NumPy 1.17

numpy.ma.MaskedArray.compressed

method

MaskedArray.compressed(self) [source]

Return all the non-masked data as a 1-D array.

Returns:
data : ndarray

A new ndarray holding the non-masked data is returned.

Notes

The result is not a MaskedArray!

Examples

>>> x = np.ma.array(np.arange(5), mask=[0]*2 + [1]*3)
>>> x.compressed()
array([0, 1])
>>> type(x.compressed())
<class 'numpy.ndarray'>

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https://docs.scipy.org/doc/numpy-1.17.0/reference/generated/numpy.ma.MaskedArray.compressed.html