Method test_std_values

numpy/_core/tests/test_multiarray.py:7333–7339

(self)

            assert_equal(np.var(a, where=False), np.nan)

    def test_std_values(self):
        rmat, cmat, omat = self._create_data()
        for mat in [rmat, cmat, omat]:
            for axis in [0, 1, None]:
                tgt = np.sqrt(_var(mat, axis=axis))
                res = _std(mat, axis=axis)
                assert_almost_equal(res, tgt)

    def test_std_where(self):
        a = np.arange(25).reshape((5, 5))[::-1]