Throughout this book I use
f() to refer to functions,
g to refer to variables and function parameters, and
h/ to paths.
Larger code blocks intermingle input and output. Output is commented (
#>) so that if you have an electronic version of the book, e.g., https://adv-r.hadley.nz/, you can easily copy and paste examples into R.
Many examples use random numbers. These are made reproducible by
set.seed(1014), which is executed automatically at the start of each chapter.