[R] Extract character from the end of a string

[Joshua Wiley]

Hi,

This answer is predicated on the assumption that you are using "list"
in its English sense.

## character vector with the names
x <- c("Steve Young*", "Joe Montana*", "Tom Brady", "Daunte Culpepper")
## using grepl() and taking advantage of how logical data is stored to
get 0/1 data
as.numeric(grepl("\\*$", x))

See ?regexp for more details on regular expressions, ?grepl and ?TRUE
for documentation on logical values

Hope this helps,

Josh

On Thu, Jun 23, 2011 at 11:06 PM, jwehr <jglandwehr at gmail.com> wrote:
> I have a list of names that look like this, with some ending in an "*" and
> others not:
>
> Steve Young*
> Joe Montana*
> Tom Brady
> Daunte Culpepper
> ...
>
> I want to create a variable that = 1 if the name ends in "*" and = 0
> otherwise. Please help!
>
> --
> View this message in context: http://r.789695.n4.nabble.com/Extract-character-from-the-end-of-a-string-tp3621732p3621732.html
> Sent from the R help mailing list archive at Nabble.com.
>
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-- 
Joshua Wiley
Ph.D. Student, Health Psychology
University of California, Los Angeles
http://www.joshuawiley.com/