[codeenlightener]

> that I think it's more correct than "mean squared error". You should change that example.

Thank you for the feedback.

> - The code is called l2, which stands for "linear regression."

If you can give me the full explanation, I can see what I can do to improve the accuracy there. (It's needed for debugging.)

Over time, more data will be added in the future so that accuracy and detail improves.