Chapter 1 Preface

1.1 How to use this document

These notes are published in bookdown format which enables easy creation of longform documents (using a mixture of markdown, R, and for these notes specifically, Stata’s dyndoc, which was added in Stata 15).

The table of contents is found on the left hand side, with subsections expanding below the current section. At the top of the page are four icons, from left to right they 1) Hide/show the table of contents, 2) Search this document, 3) Change the font the book is displayed in, and 4) Display keyboard shortcuts.

All images should link to full-size versions to see detail if needed.

1.2 Contact information

1.2.1 CSCAR

1.2.2 Author

  • Josh Errickson
  • 3550 Rackham Building
  • 915 E. Washington Street
  • Ann Arbor, MI 48109-1070
  • Email:

1.3 Acknowledgments

These notes have evolved over the years thanks to many CSCAR statisticians, including Giselle Kolenic, Brady West, Heidi Reichert, and Lingling Zhang.

This material was created for use in workshops and short courses presented by faculty and staff from the Consulting for Statistics, Computing & Analytics Research (CSCAR) at the University of Michigan. No part of this material may be used for other purposes, copied, changed, or sold.