numpy.ma.common_fill_value(a, b)

MaskedArray.set_fill_value(value=None)

MaskedArray.flatten(order='C')

numpy.ma.count(a, axis=None)

numpy.ma.corrcoef(x, y=None, rowvar=True, bias=, allow_masked=True, ddof=)

numpy.ma.empty(shape, dtype=float, order='C') = Return a new array of given shape and type, without initializing entries.

MaskedArray.nonzero()

numpy.ma.loads(strg)

numpy.ma.clump_masked(a)

numpy.ma.choose(indices, choices, out=None, mode='raise')