On Monday, we focus mainly on how to conduct a permutation test in a linear regression model. You can follow along with the “saratoga_test.R” script, from the R Scripts tab above.
If we have time remaining, we will go over some of last week’s homework. I have posted solution guides for what we don’t cover. You can find them in the cheese_demand.R, overtime.R, and predimed_test.R scripts from the R Scripts tab.
On Wednesday, we will cover Chapter 8 of the course packet in class. The main topics are:
- measuring generalization error using RMSPE.
- building and checking a predictive model.
- stepwise selection.
You can follow along with the “saratoga_stepwise.R” script, from the R Scripts tab above.
Software
Outside of class, complete the following R walkthrough.
Before Monday of next week (week 7), so that you can complete your homework:
- Google flu trends: Building and checking a predictive model for flu using stepwise selection on Google search data.
Readings
By Monday of next week, please read Chapter 8 of the course packet. You will need these ideas in order to complete your homework this week.
Videos
Owing to the many, many other things going on in your school lives these two weeks, there are no additional videos to watch before the midterm. We will cover everything in class.
Exercises
Exercises 6 this week are on multiple regression modeling and stepwise selection. They are due in class on March 5.