11/17/2025

Chapter 9 - Regression Problems

Quick review of simple linear regression and least squares

Nonparametric regression

• Theil Statistic - based on all possible slopes
• Other methods are based on ranks (rfit function in R), least median squares, smoothing techniques, etc.

Class Lab Activity

• See GoogleDrive\Stat216-Nonparametrics-F2023\!Class examples and labs\Nonparametric SLR - Examples in R.RMD
• See GoogleDrive\Stat216-Nonparametrics-F2023\!Class examples and labs\Nonparametric SLR - Lab Activity.RMD

Please read Sections 9.4 - 9.6 for class on Wednesday.