## Using X with shape (4, 1)

ValueError Traceback (most recent call last)

in

6 print(‘Gradient at initial w, b (zeros):’, tmp_dj_dw, tmp_dj_db)

7

----> 8 compute_gradient_test(compute_gradient)

~/work/public_tests.py in compute_gradient_test(target)

50 dj_dw, dj_db = target(x, y, initial_w, initial_b)

51 #assert dj_dw.shape == initial_w.shape, f"Wrong shape for dj_dw. {dj_dw} != {initial_w.shape}"

—> 52 assert dj_db == 0.0, f"Case 1: dj_db is wrong: {dj_db} != 0.0"

53 assert np.allclose(dj_dw, 0), f"Case 1: dj_dw is wrong: {dj_dw} != [[0.0]]"

54

ValueError: The truth value of an array with more than one element is ambiguous. Use a.any() or a.all()

not getting why this error is occurred

Please help