Week 2 Exercise 8 model

Course Q&A Deep Learning Specialization Neural Networks and Deep Learning
1

Hi!

I’m getting this assertion error for exercise 8: AssertionError: Wrong values for d['costs']. [array(0.00154532)] != [array(0.69314718)]

But my logistic regression model does seems to be training correctly. Is there an error in the model_test?

Cost after iteration 0: 0.693147
Cost after iteration 100: 0.584508
Cost after iteration 200: 0.466949
Cost after iteration 300: 0.376007
Cost after iteration 400: 0.331463
Cost after iteration 500: 0.303273
Cost after iteration 600: 0.279880
Cost after iteration 700: 0.260042
Cost after iteration 800: 0.242941
Cost after iteration 900: 0.228004
Cost after iteration 1000: 0.214820
Cost after iteration 1100: 0.203078
Cost after iteration 1200: 0.192544
Cost after iteration 1300: 0.183033
Cost after iteration 1400: 0.174399
Cost after iteration 1500: 0.166521
Cost after iteration 1600: 0.159305
Cost after iteration 1700: 0.152667
Cost after iteration 1800: 0.146542
Cost after iteration 1900: 0.140872
train accuracy: 99.04306220095694 %
test accuracy: 70.0 %

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2

To anyone having the same error, I named ‘cost’ instead of ‘costs’.

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