list-ops: Grep, keep or discard a list or vector by pattern

In hacksaw: Additional Tools for Splitting and Cleaning Data

Description

Grep, keep or discard a list or vector by pattern

Usage

keep_pattern(x, pattern, ...)

discard_pattern(x, pattern, ...)

Arguments

x	a list or vector.
pattern	string containing a regular expression to be matched in the given character vector.
...	additional arguments passed to grepl.

Value

A list.

Examples

l <- list("David", "Daniel", "Damien", "Eric", "Jared", "Zach")
l %>% keep_pattern("^D")
l %>% discard_pattern("^D")

hacksaw documentation built on Jan. 13, 2021, 7:57 a.m.