CODEWITHSUNDEEP
regexr
Mahesh
Mahesh

Reputation: 21

how do I find the position of a specific character in a character vector in r

I have x = c("AU|30|3020","AU|15|1510","AU|2000|510").

If I want to know the position of the last “|” for each element in x, how do I do it. The answer should be 6 6 8.

An acceptable alternative is to find the position of (say) the second "|" for each element (as opposed to last "|").

Upvotes: 2

Views: 132

Answers (2)

Sven Hohenstein
Sven Hohenstein

Reputation: 81683

You can get the position of the last | (independent of the total number of |s) with the following command:

unlist(gregexpr("\\|[^|]*$", x))
# [1] 6 6 8

Upvotes: 2

Ananta
Ananta

Reputation: 3711

are there always 2 |? if so

unlist(lapply(gregexpr("\\|",x),"[[",2))

otherwise you may need workaround. Also, look at stringr package

Upvotes: 0

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