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marcopeix/update_parameters.py

Created February 26, 2019 18:13
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update_parameters.py
def update_parameters(parameters, grads, learning_rate):
L = len(parameters) // 2 # number of layers in the neural network
for l in range(L):
parameters["W" + str(l+1)] = parameters['W' + str(l + 1)] - learning_rate * grads['dW' + str(l + 1)]
parameters["b" + str(l+1)] = parameters['b' + str(l + 1)] - learning_rate * grads['db' + str(l + 1)]
return parameters
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