R help - May 2008 - Concatenate a vector into a string, only using distinct component

I'm trying to use combine
c('a','b','c','a','c') into 'a, b,
c', the order
does not matter.

paste(c('a','b','c','a','c'),
collapse=', ') yields 'a, b, c, a, c'.

Any idea?

-- 
Regards,
Anh Tran

	[[alternative HTML version deleted]]

Hi Anh,

Try this,

x=c('a','b','c','a','c')
paste(unique(x),collapse=", ")
[1] "a, b, c"

HTH,

Jorge

On Tue, May 6, 2008 at 2:22 PM, Anh Tran <popophobia@gmail.com> wrote:
> I'm trying to use combine
c('a','b','c','a','c') into 'a, b,
c', the order
> does not matter.
>
> paste(c('a','b','c','a','c'),
collapse=', ') yields 'a, b, c, a, c'.
>
> Any idea?
>
> --
> Regards,
> Anh Tran
>
>        [[alternative HTML version deleted]]
>
> ______________________________________________
> R-help@r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>
	[[alternative HTML version deleted]]

probably you want:

stg <- c('a', 'b', 'c', 'a', 'c')
paste(unique(stg), collapse = ", ")


I hope it helps.

Best,
Dimitris

-- 
Dimitris Rizopoulos
Ph.D. Student
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 Anh Tran <popophobia at gmail.com>:
> I'm trying to use combine
c('a','b','c','a','c') into 'a, b,
c', the order
> does not matter.
>
> paste(c('a','b','c','a','c'),
collapse=', ') yields 'a, b, c, a, c'.
>
> Any idea?
>
> --
> Regards,
> Anh Tran
>
> 	[[alternative HTML version deleted]]
>
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>
>


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