Exemplo n.º 1
0
def check_uniform(low, high):
    rng = check_random_state(1)

    p_carl = Uniform(low=low, high=high)
    p_scipy = st.uniform(loc=low, scale=high - low)
    X = 3 * rng.rand(50, 1) - 1

    assert_array_almost_equal(p_carl.pdf(X),
                              p_scipy.pdf(X.ravel()))
    assert_array_almost_equal(p_carl.cdf(X),
                              p_scipy.cdf(X.ravel()))
    assert_array_almost_equal(-np.log(p_carl.pdf(X)),
                              p_carl.nnlf(X))
Exemplo n.º 2
0
def test_rvs():
    p = Uniform(low=-10, high=10, random_state=0)
    samples = p.rvs(100)
    assert_equal(samples.shape, (100, 1))
    assert np.all(samples < 10)
    assert np.all(samples > -10)

    q = Uniform(low=-10, high=10, random_state=0)
    samples2 = q.rvs(100)
    assert_array_equal(samples, samples2)

    q = Uniform(low=-10, high=10, random_state=1)
    samples2 = q.rvs(100)
    assert np.all(samples != samples2)
Exemplo n.º 3
0
def check_uniform(low, high):
    rng = check_random_state(1)

    p_carl = Uniform(low=low, high=high)
    p_scipy = st.uniform(loc=low, scale=high - low)
    X = 3 * rng.rand(50, 1) - 1

    assert_array_almost_equal(p_carl.pdf(X), p_scipy.pdf(X.ravel()))
    assert_array_almost_equal(p_carl.cdf(X), p_scipy.cdf(X.ravel()))
    assert_array_almost_equal(-np.log(p_carl.pdf(X)), p_carl.nnlf(X))
Exemplo n.º 4
0
def test_rvs():
    p = Uniform(low=-10, high=10, random_state=0)
    samples = p.rvs(100)
    assert_equal(samples.shape, (100, 1))
    assert np.all(samples < 10)
    assert np.all(samples > -10)

    q = Uniform(low=-10, high=10, random_state=0)
    samples2 = q.rvs(100)
    assert_array_equal(samples, samples2)

    q = Uniform(low=-10, high=10, random_state=1)
    samples2 = q.rvs(100)
    assert np.all(samples != samples2)