dsmisc: str_group_extract – R documentation

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str_group_extract

Extract Regular Expression Groups

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

Data Science Box of Pandora Miscellaneous

v0.3.3

GPL (>= 2)

Authors

Peter Meissner [aut, cre]

Initial release

2020-09-11