str_group_extract: Extract Regular Expression Groups

In dsmisc: Data Science Box of Pandora Miscellaneous

Description

Extract Regular Expression Groups

Usage

str_group_extract(string, pattern, group = NULL, nas = TRUE)

Arguments

string	string to extract from
pattern	pattern with groups to match
group	groups to extract
nas	return NA values (TRUE) or filter them out (FALSE)

Value

string vector or string matrix

Examples

strings <- paste(LETTERS, seq_along(LETTERS), sep = "_")
str_group_extract(strings, "([\\w])_(\\d+)")
str_group_extract(strings, "([\\w])_(\\d+)", 1)
str_group_extract(strings, "([\\w])_(\\d+)", 2)

dsmisc documentation built on Sept. 13, 2020, 5:21 p.m.