Stuck on C1_W3_Logistic_Regression assigment: expected value a little different from mine

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

I’m desperatly trying to get out of the error I get in the C1_W3_Logistic_Regression assignment. I believe there is a problem in the unit test because the question here is very easy, however I get the error

Wrong output. Expected: 0.5469746792761936 got:0.5393372325035918

However, the regularized cost I get is VERY close to the expected result (0.6618252552483951 rather than 0.6618252552483948). So I can’t understand.

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Can you help me unlocking this situation?
This is my implementation that, as said, is really easy:
{mentor edit: code removed}

2

I found my error, sorry for disturbing

3

I’ll edit your message to remove your code.
Posting your code is not allowed.

4

I have the same problem in simple UNQ_C5. My compute_cost_reg function calculates Regularized cost as 0.6618252552483951 while expected outcome is 0.6618252552483948
I tried a few tricks and even copy pasted the solution from hints but to no avail. Is there still hidden trick to make the cost exactly as expected?

5

Mine does the same thing for the compute_gradient function, I’ve tried tweaking, rephrasing and reformatting my code but nothing seems to work. Both my sigmoid and cost function worked perfectly, and my dj_db value is also correct, but i can’t seem to find the error in my dj_dw calculation. Does anyone have any suggestions

6

Hi!

@dtsyganyuk @Jiao_Jiao can you send me your code in a direct message? I’ll take a look and help out

7

its fine, thanks i figured it out, i made some changes and it passed all the tests, but would not match the expected output. thats why i was confused. Thanks!