C5 W1 A2 (Dinosaur Island) - Grader Error on 'optimize' function (exercise 3)?

[Deepti_Prasad]

Most of this problem is due to code in the notebook using a global variable that isn’t supported by the grader.

Did you address this issue?

I hope you have an understanding of global variables. Check the below comment to make you more understand about where you could have gone wrong. and if you still not able to get, share your this part of code via DM.

W1, A2, part3 optimize

Ok, this is an interesting one. The reason that the grader fails does have to do with your clip function. You could argue that the problem is not really a bug in your implementation, but the grader thinks it is. Here’s what happened: You changed the template code in clip and used a more sophisticated implementation than what they were suggesting. The way your implementation works is that it preserves and clips all entries in the input gradients dictionary, even if they aren’t in the explicit na…

Regards
DP