29 lines
820 B
Python
29 lines
820 B
Python
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"""
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Created on Wed Mar 28 13:49:11 2012
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Author: Josef Perktold
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"""
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import pytest
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import numpy as np
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from numpy.testing import assert_almost_equal
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from statsmodels.stats.libqsturng import qsturng, psturng
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from statsmodels.sandbox.stats.multicomp import get_tukeyQcrit
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@pytest.mark.parametrize('alpha', [0.01, 0.05])
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@pytest.mark.parametrize('k', np.arange(2, 11))
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def test_qstrung(alpha, k):
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rows = [5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
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16, 17, 18, 19, 20, 24, 30, 40, 60, 120, 9999]
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c1 = get_tukeyQcrit(k, rows, alpha=alpha)
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c2 = qsturng(1 - alpha, k, rows)
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assert_almost_equal(c1, c2, decimal=2)
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# roundtrip
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assert_almost_equal(psturng(qsturng(1 - alpha, k, rows), k, rows),
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alpha,
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5)
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