# Lec12

### More logistic regression.

### Announcements

- Quiz
- Math talk: Tue Oct 11 12:30-1:30pm Warner Hemicycle. Taking a Chance on Health Care: Applying Bayesian Hierarchical Modeling to Health Policy Research by Lauren Vollmer ‘10. Free Pizza!

### In-Class

- Slides:
- Expanding on logistic regression: concepts and implementation in R
- Machine learning concepts:
- Unsupervised learning vs supervised learning
- Model training vs model testing

- In-class exercise:
- Code:
`Lec12.R`

- Code: