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String Manipulation with stringr in R

Charlotte Wickham

Assistant Professor at Oregon State University

Ranges in character classes

DOLLAR %R% char_class("0123456789")

<regex> \\$[0123456789]

A digit

char_class("0-9")

<regex> [0-9]

A lower case letter

char_class("a-z")

<regex> [a-z]

An upper case letter

char_class("A-Z")

<regex> [A-Z]

DGT                # A digit -->

<regex> \d

WRD       # A word character -->

<regex> \w

SPC     # A whitespace character

<regex> \s

char_class("0-9")

<regex> [0-9]

char_class("a-zA-z0-9_")

<regex> [a-zA-z0-9_]

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chap_3_3.018.png

String Manipulation with stringr in R