Method test_trace

numpy/ma/tests/test_old_ma.py:869–875

(self)

        return x, X, XX, m, mx, mX, mXX

    def test_trace(self):
        _, X, _, _, _, mX, _ = self._create_data()
        mXdiag = mX.diagonal()
        assert_equal(mX.trace(), mX.diagonal().compressed().sum())
        assert_(eq(mX.trace(),
                           X.trace() - sum(mXdiag.mask * X.diagonal(),
                                           axis=0)))

    def test_clip(self):
        x, _, _, _, mx, _, _ = self._create_data()