E.3 Summary

For a compact and useful overview of R’s regex options, see the Posit cheatsheets on Basic Regular Expressions in R (contributed by Ian Kopacka):

Basic regular expressions in R (by Ian Kopacka)<br> available at [Posit cheatsheets](https://posit.co/resources/cheatsheets/).

Figure E.2: Basic regular expressions in R (by Ian Kopacka)
available at Posit cheatsheets.

Additionally, the overview of the stringr package (Wickham, 2022) on Posit cheatsheets contains a useful overview on regular expressions:

Text and string manipulation with **stringr** and regular expressions<br>from [Posit cheatsheets](https://posit.co/resources/cheatsheets/).

Figure E.3: Text and string manipulation with stringr and regular expressions
from Posit cheatsheets.

For more information on creating and manipulating strings of text, see Chapter 9 on Strings of text.


Wickham, H. (2022). stringr: Simple, consistent wrappers for common string operations. Retrieved from https://stringr.tidyverse.org