[R] gsub patterns from vector elements w/out loop?

[Benilton Carvalho]

gsub("one|two", "something else", y)

?

On Mon, Feb 22, 2010 at 4:25 PM, Marianne Promberger
<marianne.promberger at kcl.ac.uk> wrote:
> Dear list,
>
> I have two vectors:
>
> x <- c("one","two")
> y <- paste(rep(x,2),"blah")
>
> I want to replace all occurrences of each element of x in y with
> something else, so that y looks like this:
>
> y
> [1] "something else blah" "something else blah" "something else blah"
> [4] "something else blah"
>
> I can do this using a loop:
>
> for ( i in 1:length(x) ) {
>  y <- gsub(x[i],"something else",y)
> }
>
> Surely, there must be a less kludgy way?
>
> I tried looking at the different apply()s but am not getting anywhere,
> partly because I lack the mental flexibility to combine the fact that
> I am applying gsub() to y but now want to apply that to x ...  erm. :/
>
> Marianne
>
> --
> Marianne Promberger PhD, King's College London
> http://promberger.info
> R version 2.10.1 (2009-12-14)
> Ubuntu 9.10
>
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