All test passed in model_test(model) but logistic_regression_model got an error

[FrankieK]

Hi,

In week 2’s coding assignment, my test was passed in model_test(model) but logistic_regression_model got an error: ValueError: operands could not be broadcast together with shapes (1,50) (1,209)

I’ve followed the instruction “If you pass all the tests, run the following cell to train your model.”, but I am not sure why at the last 100 iterations, I got an error? Can you give me some pointers? Thanks!

[mbarchukov]

Hello!

I have the same problem.

[jonaslalin]

Hello @FrankieK and @mbarchukov,

I think I know what you have done wrong, see

Wk 2, PA Log. Regr. w/ NN logistic_regression_model not working

I guess you have an error in your model function, where you calculate Y_prediction_train. You are most likely using X_test, which contains 50 examples, instead of X_train, which has 209 examples. Number of training examples: m_train = 209 Number of testing examples: m_test = 50 If I swap the datasets, I get the same error: Cost after iteration 1800: 0.146542 Cost after iteration 1900: 0.140872 --------------------------------------------------------------------------- ValueError …