Preface

There are hundreds of R guides available online. This is the only one written specifically for students in SIS600 at American University. It introduces the basics of R for data analysis for graduate students with no prior experience in R or statistical computing more broadly. While it will not answer all of your questions about R, we hope you will find it a useful companion to lectures, assignments, and other course materials.

We regularly update this guide. If you find errors, bugs, or otherwise have suggestions about how to enhance the user experience, let us know. Just send us an email at or .