To learn about how to handle character strings using regular expressions, we follow the case study in Chapter 17.1-17.7 of “Introduction to Data Science” by Rafael A. Irizarry.
The tutorial works with a dataset of self-reported heights, and covers
both the most important functions for handling strings in R (with the
stringr package) and the basics of describing patterns in strings with
regular expressions.
Please use this link to follow the tutorial.
In addition, this cheatsheet provides a brief summary of the key functions and regex patterns.