This book emerged from the course notes I developed as instructor for a course (STAT 341) at Colorado State University. My intent is for this to serve as a resource for an introductory-level undergraduate course on regression methods. Emphasis is on the application of methods, and so mathematical concepts are intertwined with examples using the R computing language.

This book assumes an understanding of basic statistical concepts, including expectation and variance. The examples almost exclusively use the R programming language, and basic familiarity with R is assumed.


This work is currently (as of Fall 2020) under development and the content is subject to change as more material is added. If you find any errors, please let me know!


All content is copyright © 2020 Joshua Keller. The work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.