numpy.ma.masked_less_equal(x, value, copy=True)

numpy.ma.make_mask_descr(ndtype)

MaskedArray.ptp(axis=None, out=None, fill_value=None)

numpy.ma.masked_less(x, value, copy=True)

numpy.ma.atleast_2d(*arys) = View inputs as arrays with at least two dimensions.

numpy.ma.common_fill_value(a, b)

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

MaskedArray.nonzero()

numpy.ma.clump_masked(a)

numpy.ma.all(self, axis=None, out=None) = Check if all of the elements of a are true. Performs a logical_and