def test(self):
layer = Layer(size=1,
prev_size=3,
activation=activation_functions.Sigmoid)
layer.randomize()
x = np.array([1, 9, -2], float)
a, z = layer.feed(x)
self.assertNotEqual(a[0], 0)
def test_feed_with_sigmoid(self):
layer = Layer(size=2,
prev_size=3,
activation=activation_functions.Sigmoid)
x = np.array([1, 9, 323], float)
a, z = layer.feed(x)
self.assertEqual(z[0], 0)
self.assertEqual(z[1], 0)
self.assertEqual(a[0], 0.5)
self.assertEqual(a[1], 0.5)
def test_rectifier(self):
layer = Layer(size=2,
prev_size=2,
activation=activation_functions.Sigmoid)
layer.set_activation(activation_functions.Rectifier)
self.assertEqual(layer.get_activation().__class__,
activation_functions.Rectifier.__class__)
x = np.array([1, 9], float)
a, z = layer.feed(x)
self.assertEqual(a[0], 0)
self.assertEqual(a[1], 0)