numpy.ma.compressed(x)

numpy.ma.MaskType

numpy.ma.argmax(a, axis=None, fill_value=None)

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

numpy.ma.compress_rowcols(x, axis=None)

MaskedArray.resize(newshape, refcheck=True, order=False)

numpy.ma.average(a, axis=None, weights=None, returned=False)

numpy.ma.array(data, dtype=None, copy=False, order=None, mask=False, fill_value=None, keep_mask=True, hard_mask=False, shrink=True, subok=True, ndmin=0)

numpy.ma.median(a, axis=None, out=None, overwrite_input=False)

numpy.ma.asanyarray(a, dtype=None)