Lecture 13

Nov 11, 2024

Overview

  • Define Strings, Regular Expressions, and their uses
  • Introduce the stringr() package
  • Practice using Regular Expressions in R to extract info from strings

Readings

  • Read Chapter 14 “Strings” in “R for Data Science” 2nd Edition (read it all, especially 14.4 “Extracting data from strings”)
  • Read Chapter 17 from R Programming for Data Science. This book covers the entire range of regular expressions packages and functions: you do not need to understand everything, but you might want to refer back to this when needed. In-class we focus on stringr()
  • stringr() documentation and cheatsheet
  • Optional: Chapter 15 by Rochelle Terman, further explains stringr() using the R for Data Science textbook

Class materials

In-class materials (exercises and code) will be posted here shortly before class.