10 examples of 'sigmoid function python' in Python

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144def sigmoid(self, z):
145
146 z = z * -1
147 z = np.exp(z)
148 x = 1.0 / (1.0 + z)
149
150 return x
63def _sigmoid(self, z):
64 """Compute logistic function (sigmoid)"""
65 return 1. / (1. + np.exp(-np.clip(z, -250, 250)))
22def __sigmoid_derivative(self, x):
23 return x*(1-x)
939def sigmoid(*args):
940 return _cntk_py.sigmoid(*args)
29def sigmoid(x):
30 """Sigmoid function"""
31 return 1. / (1. + np.exp(-x))
12def sigmoid(x):
13 return 1.0 / (1.0 + np.exp(-x))
34def sigmoid(x):
35 return 1.0 / (1.0 + np.exp(-x)) # sigmoid "squashing" function to interval [0,1]
92def sigmoid(x):
93 """
94 Sigmoid function of x, aka 1/(1+exp(-x)).
95
96 Parameters
97 ----------
98 x: a real number
99
100 Returns
101 -------
102 res: a real number
103 The result of sigmoid function
104 """
105 return 1 / (1 + numpy.exp(-x))
6def sigmoid(x):
7 return float(1) / (1 + math.exp(-x))
32def d_sigmoid(x):
33 return sigmoid(x)*(1 - sigmoid(x))

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