4afdc53218ffc1356c008ef2e4a3c4c5d4f1795e,scipy/signal/tests/test_filter_design.py,TestButtord,test_highpass,#TestButtord#,166

Before Change

        assert_allclose(Wn, 2.034240543183123e-01, rtol=1e-15)

    def test_highpass(self):
        n, Wn = buttord(0.3, 0.2, 3, 70)
        assert_equal(n, 18)
        assert_allclose(Wn, 2.994397774822765e-01, rtol=1e-15)

    def test_bandpass(self):

After Change

        ws = 0.2
        rp = 3
        rs = 70
        N, Wn = buttord(wp, ws, rp, rs, False)
        b, a = butter(N, Wn, "highpass", False)
        w, h = freqz(b, a)
        w /= np.pi
        assert_array_less(-rp - 0.1, dB(h[wp <= w]))
        assert_array_less(dB(h[w <= ws]), -rs + 0.1)

Instances