CODEWITHSUNDEEP
rregex
DonDyck
DonDyck

Reputation: 1471

Using grep to partial match a string

I am looking for a partial matching between two strings, the condition would return true if all words match, but would be false otherwise. e.g. 

myElem <- "a b"

would return true when matched with 

nElem <- "a b c"

or 

nElem<- "d g b a",

but would return false if

nElem <- "d c g a"

Can anybody suggest a way using grep or other functions? Thanks in advance.

Also any tutorial for learning the basics of the grep options?

Upvotes: 0

Views: 1776

Answers (1)

Rich Scriven
Rich Scriven

Reputation: 99371

Have you tried agrepl? You could adjust the max.distance and costs arguments if necessary.

x <- c("a b c", "d g b a", "d c g a")
agrepl("a b", x)
# [1]  TRUE  TRUE FALSE

Upvotes: 1

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