evaluation session

[sbfnk]

closes #6

[seabbs]

This looks good but I wonder if it's enough to just have the random walk model here? In the ensemble session we pull in the other models without introduction and I had thought we would do that here.

[seabbs]

I've queued for merging as I think it's good as is but point stands about multiple models and the course flow

[sbfnk]

This looks good but I wonder if it's enough to just have the random walk model here? In the ensemble session we pull in the other models without introduction and I had thought we would do that here.

I've added a bit of introduction in #11 (where the different models are also compared), both in the lecture and session. I didn't think there was time to do more and explain all the models etc. given that we're not using stan or showing any model code.

[seabbs]

We could keep the r code simulation as extensions?