[image] Thk for feedbacks

Your code has too many elements in d[‘costs’]. It should have 1, but it actually has 20.

I do not even change this d[cost] value … It says it’s the wrong type for d[cost] What do you mean that there are 20 elements? Do you know what has caused these error and what I have to do or not?

I’m just summarizing what the error message says. It doesn’t say wrong type - it says wrong length. I have not looked at the details of that course in a long time. So I do not remember immediately. I’ll look into it.

Yes you are right… but it say also wrong type of this d[cost] no? if you fix the length that will be the next problem… don’t you think? What are, where I can see these d[cost ]parameters? It sound strange that you do not know the answer… Anyways God knows right?

[image] Luca_De_Renzo: Yes you are right… but it say also wrong type of this d[cost] no? Please read the exception trace more carefully. Notice that the arrow on the left side (indicating which lines are part of the stack trace from the exception) points at the line about the length of the co…

[image] Luca_De_Renzo: It sound strange that you do not know the answer… Not strange at all. I am primarily involved with DLS Course 4 and Course 5.

Thks but I did understand with the help of internet; I found on internet the exact line of code without parameters I would have not given parameters to the learning rate and to the iterations But all the process should have being explained better in the lectures Instead of all that mathematical …

Another simple example of lack of informations On the programming assignment of W2 " - Overview of the Problem set" index = 20 plt.imshow(train_set_x_orig[index]) print ("y = " + str(train_set_y[:, index]) + “, it’s a '” + classes[np.squeeze(train_set_y[:, index])].decode(“utf-8”) + “’ picture…

[image] Luca_De_Renzo: I would have not given parameters to the learning rate and to the iterations But all the process should have being explained better in the lectures If you mean that you specified values for the parameters on the call to optimize, that is simply a misunderstanding of ho…

W2_A2_Ex-8_Too many elements in d[costs]

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

saifkhanengr May 10, 2023, 1:42pm 6

Here is the answer to your problem. Check it out.

Topic		Replies	Views
Error - Length of d[cost] Neural Networks and Deep Learning coursera-platform	4	563	May 14, 2021
Week 2, exercise 8, cost is not the correct shape Neural Networks and Deep Learning coursera-platform	1	528	July 8, 2022
Exercise 8 - week2 assignment Neural Networks and Deep Learning coursera-platform	12	612	September 11, 2023
W2_Ex-8_AssertionError: Wrong length for d[‘costs’]. 20 != 1 Neural Networks and Deep Learning coursera-platform	15	1463	October 25, 2024
DLS Course 1- week 2 - assignment 2 - Exercice 8 Neural Networks and Deep Learning coursera-platform	3	554	April 14, 2022

W2_A2_Ex-8_Too many elements in d[costs]

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