Thanks Dimitris, elegant solution.
On 3/11/08, Dimitris Rizopoulos <[EMAIL PROTECTED]> wrote:
>
> try this:
>
> nams <- c("a", "b", "c", "d")
> combn(nams, 2, paste, collapse = " vs. ")
>
>
> I hope it helps.
>
> Best,
> Dimitris
>
> ----
> Dimitris Rizopoulos
> Biostatistical Centre
> School of Public Health
> Catholic University of Leuven
>
> Address: Kapucijnenvoer 35, Leuven, Belgium
> Tel: +32/(0)16/336899
> Fax: +32/(0)16/337015
> Web: http://med.kuleuven.be/biostat/
> http://www.student.kuleuven.be/~m0390867/dimitris.htm
>
>
> Quoting Ng Stanley <[EMAIL PROTECTED]>:
>
> > Hi,
> >
> > Given names <- c("a", "b", "c", "d"). I would like to generate "a vs.
> b", "a
> > vs. c", "a vs. d", "b vs. c", "b vs. d", "c vs. d"
> >
> > Thanks
> >
> > [[alternative HTML version deleted]]
> >
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> >
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