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2021 | OriginalPaper | Chapter

6. Some Simple Patterns

Author : William Yarberry

Published in: CRAN Recipes

Publisher: Apress

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Abstract

Regular expressions, taken to their extreme, can make you feel irregular. For many R programming tasks, only a few meta-characters need be used. Table 6-1 is from an excellent Loyola Marymount University website. In R, the regular expression will be enclosed in quotes and used in one of the seven functions listed in Chapter 9, “The Magnificent Seven.”

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previous chapter Typical Uses
next chapter Character Classes
Footnotes
1
“Regular Expressions,” accessed February on 4, 2020, https://cs.lmu.edu/~ray/notes/regex/.
 
2
“RegEx to Extract String from a File Path R?”, Stack Overflow, accessed on March 22, 2020, https://stackoverflow.com/questions/51463499/regex-to-extract-string-from-a-file-path-r.
 
4
“Extract Websites Links from a Text in R,” Stack Overflow, accessed on March 22, 2020, https://stackoverflow.com/questions/15579119/extract-websites-links-from-a-text-in-r.
 
5
“R – RegEx to Extract US Zip Codes but Not Faux Codes,” Stack Overflow, accessed on March 22, 2020, https://stackoverflow.com/questions/25180752/regex-to-extract-us-zip-codes-but-not-faux-codes.
 
6
“Regular Expressions in Perl – a Summary with Examples,” accessed on March 13, 2020, http://jkorpela.fi/perl/regexp.html.
 
Metadata
Title
Some Simple Patterns
Author
William Yarberry
Copyright Year
2021
Publisher
Apress
Book
CRAN Recipes

Print ISBN: 978-1-4842-6875-9

Electronic ISBN: 978-1-4842-6876-6

Copyright Year: 2021

DOI
https://doi.org/10.1007/978-1-4842-6876-6_6

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