What you need for this book

To follow the book's examples, you will need a computer with access to the Internet and the ability to install the R environment. You can download R from http://www.cran.r-project.org/. Detailed installation instructions are available in the first chapter.

The examples provided in this book were coded and tested with R version 3.2.4 on Microsoft Windows. The examples are likely to work with any recent version of R installed on either Mac OS X or a Unix-like OS.