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Statistics inv_cdf sync with corresponding random module normal distributions (#95265)

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Raymond Hettinger 2022-07-26 02:23:33 -05:00 • committed by GitHub
parent b7ce4625fe
commit 4395ff1e6a
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3 changed files with 5 additions and 6 deletions
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Lib/test/test_statistics.py
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@ -2801,9 +2801,10 @@ class TestNormalDist:
iq.inv_cdf(1.0) # p is one
with self.assertRaises(self.module.StatisticsError):
iq.inv_cdf(1.1) # p over one
with self.assertRaises(self.module.StatisticsError):
iq = NormalDist(100, 0) # sigma is zero
iq.inv_cdf(0.5)
# Supported case:
iq = NormalDist(100, 0) # sigma is zero
self.assertEqual(iq.inv_cdf(0.5), 100)
# Special values
self.assertTrue(math.isnan(Z.inv_cdf(float('NaN'))))