示例#1
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 def test_verysmall(self):
     self.assertAlmostEqual(sigmoid(-100), 0.0)
示例#2
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 def test_verybig(self):
     self.assertAlmostEqual(sigmoid(100), 1.0)
示例#3
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 def test_one(self):
     self.assertAlmostEqual(sigmoid(1.0), 0.73105858)
示例#4
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 def test_negone(self):
     self.assertAlmostEqual(sigmoid(-1.0), 0.26894142)
示例#5
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 def test_zero(self):
     self.assertAlmostEqual(sigmoid(0.0), 0.5)