[R] two questions about character manipulation

R. Michael Weylandt michael.weylandt at gmail.com
Sun Sep 16 17:56:33 CEST 2012


On Sun, Sep 16, 2012 at 3:35 PM, Özgür Asar <oasar at metu.edu.tr> wrote:
> Dear all,
>
> I want to manipulate a character string such as
>
> ex<-"cbind(data$response1,data$response2)"
>
> in R in two ways:
>
> 1) extracting the "response1" portion of ex

I'm not sure what you mean by "portion" -- if you just want
"response1" why do you need to process ex?

You probably wind up wanting to use gsub() and putting in "" for
things which aren't response1, but again, it seems impractical...

> 2) replacing "$" with "."

gsub("$", ".", ex, fixed = TRUE)

Cheers,
Michael

>
> I am wondering that is it possible efficiently doing these in R?
>
> Best
>
> Ozgur
>
>
>
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