C1_W2_Lab03_lab_utils_multi

This is regarding a function in lab_utils_multi.py.
Could someone please let me know how the parameters -32, -67, -1.46 were determined in def plot_cost_i_w(X,y,hist):
I understand that wr is [-0.95 -0.82 -0.69 -0.56 -0.44 -0.31 -0.18 -0.05 0.08 0.21 0.33 0.46 0.59 0.72 0.85 0.98 1.1 1.23 1.36 1.49]. But I do not understand how -32, -67, -1.46 was determined.

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Which course are you attending?

You did not mention the name, and you posted in the â€śAI Projectsâ€ť forum area. Itâ€™s not intended for questions about the course material.

Hi, sorry for the inconvenience.

Iâ€™m taking the Supervised Machine Learning: Regression and Classification course. The question is related to a week 2 lab.

Also for future reference could you please let me know where I have to post questions?

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Select the â€śCourse Q&Aâ€ť area, then your course, then add a tag for the week number.

Hello @Eranga_88,

At first inspection, looks like it is to find a set of fixed w[1], w[2], w[3] such that the so-defined cost curve will be close to each of the cost values found in the gradient descent. To find them, you might need to solve a system of non-linear equations.

Cheers,
Raymond

PS: next time, go to the MLS forum first, then to the right course, and hit â€śClick Topicâ€ť there. I have moved this post to the right place for you.

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Thank you for the response and thank you for moving the question to the correct place.

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