Today

• Classification (ISL Chapter 4).

Announcement

• HW3 is due Feb 15 @ 11:59pm.

• Feedback on HW1.

  • Q1. Why are cross terms zero?

  • Q3. Prediction vs inference (p-value, CIs, model selection).

  • Q7. 39 out of 55 students got it right.

FAQs

• Contour plots for lasso and ridge. https://ucla-econ-425t.github.io/2023winter/slides/06-modelselection/modelselection.html#fig-ridge-lasso-contour

• LDA, QDA decision boundary. https://ucla-econ-425t.github.io/2023winter/slides/04-classification/classification.html#discriminant-analysis

• HW2.

  • Q1.

  • Q9. (Bonus).