Hi, I am getting the following error on the Week 2 Assignment Exercise 8 - model. Please let me know what can I do to get rid of this error:
ValueError Traceback (most recent call last)
in
1 from public_tests import *
2
----> 3 model_test(model)
~/work/release/W2A2/public_tests.py in model_test(target)
113 y_test = np.array([0, 1, 0])
114
→ 115 d = target(X, Y, x_test, y_test, num_iterations=50, learning_rate=0.01)
116
117 assert type(d[‘costs’]) == list, f"Wrong type for d[‘costs’]. {type(d[‘costs’])} != list"
in model(X_train, Y_train, X_test, Y_test, num_iterations, learning_rate, print_cost)
37
38 w, b = initialize_with_zeros(2)
—> 39 params, grads, costs = optimize(w, b, X_train, Y_train, num_iterations, learning_rate, print_cost=False)
40
41 w=params[‘w’]
in optimize(w, b, X, Y, num_iterations, learning_rate, print_cost)
35 # grads, cost = …
36 # YOUR CODE STARTS HERE
—> 37 grads, cost = propagate(w, b, X, Y)
38
39 # YOUR CODE ENDS HERE
in propagate(w, b, X, Y)
33 # YOUR CODE STARTS HERE
34
—> 35 A = sigmoid (np.dot(w.T,X) +b)
36 cost = (-1/m)*(np.sum(np.multiply(Y,np.log(A))+((1-Y)*np.log(1-A))))
37
<array_function internals> in dot(*args, **kwargs)
ValueError: shapes (1,2) and (4,7) not aligned: 2 (dim 1) != 4 (dim 0)