This repository now redirects to https://jhmaindonald.github.io/PGRcode, which has code and other supplementary content that relates to the new text “A Practical Guide to Data Analysis Using R – An Example-Based Approach”, by John H Maindonald, W John Braun, and Jeffrey L Andrews. This text is currently making its way through the Cambridge University Press copy-editing process, and is due for publication in May 2024.