`numpy.ma.core:fromflex`

Signature

def fromflex ( fxarray )

Build a masked array from a suitable flexible-type array.

The input array has to have a data-type with _data and _mask fields. This type of array is output by MaskedArray.toflex.

fxarray : ndarray: The structured input array, containing _data and _mask fields. If present, other fields are discarded.

import numpy as np
x = np.ma.array(np.arange(9).reshape(3, 3), mask=[0] + [1, 0] * 4)
rec = x.toflex()
rec
x2 = np.ma.fromflex(rec)
x2

Extra fields can be present in the structured array but are discarded:

dt = [('_data', '<i4'), ('_mask', '|b1'), ('field3', '<f4')]
rec2 = np.zeros((2, 2), dtype=dt)
rec2
y = np.ma.fromflex(rec2)
y