C1_WK3 Programming assignment - logistic regression - UNQ_C2 - compute_cost

Course Q&A Machine Learning Specialization Supervised ML: Regression and Classification
1

Hi,

Something weird, if anyone can give some hint.

Expected outputs:
Cost at initial w and b (zeros): 0.693
Cost at test w and b (non-zeros): 0.218 /test_w = np.array([0.2, 0.2]), test_b = -24/

What I’m getting is…

  1. wrong cost at initial w and b (zeros): 0.007.
    wrong cost at test w and b (non-zeros): 0.000
    Error message:
    "AssertionError: Wrong output. Expected: 2.15510667 got: 0.15761825329865956 "
    …I guess these relate to one of the intermediary results.

  2. tweak my code at the last line, removing the “… / m” part of the expression
    right cost at initial w and b (zeros): 0.693.
    wrong cost at test w and b (non-zeros): 0.000
    Error message:
    " AssertionError: Wrong output. Expected: 2.15510667 got: 0.7880912664932977
    "
    …I guess these relate to the same intermediary results.

2

The most common errors in this assignment are caused by incorrect indentation.

Python uses indentation to create code blocks. It’s extremely important you indent the code correct.