I guess it depends on which version of R you are using. My sessionInfo()
follows. What's yours?

R> sessionInfo()
R version 2.10.0 Patched (2009-10-26 r50212)
i386-pc-mingw32

locale:
[1] LC_COLLATE=English_United States.1252  LC_CTYPE=English_United
States.1252
[3] LC_MONETARY=English_United States.1252 LC_NUMERIC=C

[5] LC_TIME=English_United States.1252

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base

loaded via a namespace (and not attached):
[1] tools_2.10.0

HTH,
Jorge

On Tue, Dec 1, 2009 at 8:57 PM, Peng Yu <pengyu.ut@gmail.com> wrote:

> On Tue, Dec 1, 2009 at 7:46 PM, Jorge Ivan Velez
> <jorgeivanvelez@gmail.com> wrote:
> > Try this:
> > R> apropos('any')
> > R> ?anyDuplicated
> > HTH,
> > Jorge
> >
> > On Tue, Dec 1, 2009 at 8:32 PM, Peng Yu <pengyu.ut@gmail.com> wrote:
> >>
> >> On Tue, Dec 1, 2009 at 1:40 AM, Karl Ove Hufthammer <karl@huftis.org>
> >> wrote:
> >> > On Tue, 1 Dec 2009 14:48:04 +1100 Remko Duursma <
> remkoduursma@gmail.com>
> >> > wrote:
> >> >> any(duplicated(c(1,2,2)))
> >> >
> >> > or
> >> > anyDuplicated(c(1,2,2))
> >> > which is slightly more efficient.
> >>
> >> I don't find anyDuplicated(). Which package is it from?
>
> Here are what I got.
>
> > apropos('any')
> [1] "any"          "argsAnywhere" ".__C__ANY"    "getAnywhere"
> > ?anyDuplicated
> No documentation for 'anyDuplicated' in specified packages and libraries:
> you could try 'help.search("anyDuplicated")'
>
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