I do not have the course material online or otherwise. This is a seminar. We have students explain concepts of each chapter for us. We had planned to combine this with Pyro programs, but that was too much. If you are stuck with chapter 2, I am happy to include my code again, which is based off of code either in this thread or another in the forum. Note that I am stuck with the verification process using the full dataset. I was about to load my latest version, but it no longer runs, so cannot do so. If you have a question, I will do my best to answer it. I am sorry.