[R] is there a function like %in% for characters?

[Terry Mu]

thx, that's perfect. I thought of grep(), it also can do this.

I wonder if there is a document or book that explains things
categorically so it's easy to look up a function.

On Apr 2, 2005 10:54 PM, Liaw, Andy <andy_liaw at merck.com> wrote:
> I suppose here's one way:
> 
> > hasChar <- function(x, y) { length(grep(x, y)) > 0 }
> > hasChar("a", "abcd")
> [1] TRUE
> > hasChar("e", "abcd")
> [1] FALSE
> 
> Andy
> 
> > From: Terry Mu
> >
> > like:
> >
> > "a" %in% "abcd"
> > TRUE
> >
> > Thanks.
> >
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