Exemplo n.º 1
0
def test_bin_samples():
    samples = range(6)
    numpy.random.shuffle(samples)
    counts, bounds = bin_samples(samples, 2)
    assert_list_equal(list(counts), [3, 3])
    assert_list_equal(list(bounds[0]), [0, 3])
    assert_list_equal(list(bounds[1]), [3, 5])
Exemplo n.º 2
0
def test_bin_samples():
    samples = range(6)
    numpy.random.shuffle(samples)
    counts, bounds = bin_samples(samples, 2)
    assert_list_equal(list(counts), [3, 3])
    assert_list_equal(list(bounds[0]), [0, 3])
    assert_list_equal(list(bounds[1]), [3, 5])
Exemplo n.º 3
0
def check_nich(impl, data_count, mean, std):
    check_cm(impl)
    ss = None
    if data_count:
        data = np.random.normal(mean, std, size=data_count)
        ss = {'count': data_count, 'mean': data.mean(), 'variance': data.var()}
    cm = ComponentModel(impl, ss=ss)
    samples = cm.sample_data(SAMPS)
    counts, bin_ranges = bin_samples(samples)
    #use of quadrature is unfortunate but for now
    #it's the easiest way to score bins and seems to work
    pdf = lambda x: np.exp(cm.pred_prob(x))
    probs = [quad(pdf, m, M, epsabs=0., epsrel=1e-6)[0] for m, M in bin_ranges]
    assert_less(1 - sum(probs), THRESH)
    probs, counts = zip(*sorted(zip(probs, counts), reverse=True)[:TOPN])
    p = mgof(probs, counts, SAMPS, truncated=True)
    assert_greater(p, THRESH)
Exemplo n.º 4
0
def check_nich(impl, data_count, mean, std):
    check_cm(impl)
    ss = None
    if data_count:
        data = np.random.normal(mean, std, size=data_count)
        ss = {
                'count': data_count,
                'mean': data.mean(),
                'variance': data.var()
             }
    cm = ComponentModel(impl, ss=ss)
    samples = cm.sample_data(SAMPS)
    counts, bin_ranges = bin_samples(samples)
    #use of quadrature is unfortunate but for now
    #it's the easiest way to score bins and seems to work
    pdf = lambda x: np.exp(cm.pred_prob(x))
    probs = [quad(pdf, m, M, epsabs=0., epsrel=1e-6)[0] for m, M in bin_ranges]
    assert_less(1 - sum(probs), THRESH)
    probs, counts = zip(*sorted(zip(probs, counts), reverse=True)[:TOPN])
    p = mgof(probs, counts, SAMPS, truncated=True)
    assert_greater(p, THRESH)