Shouldn't there be biases in the example from Chapter 5?

[pomorigio]

I am currently unable to make it work for a regression problem. Your example (a classification problem) runs well for me, but I wonder if shouldn't it have biases for increased performance as the book recommends.
Thank you in advance, and best regards!

[sth4nth]

You are right. There should be biases. I was just being lazy. Will fix.

[sth4nth]

Fixed