Re: [R] randomly select duplicated entries

From: Henrique Dallazuanna <wwwhsd_at_gmail.com>
Date: Wed, 09 Jul 2008 17:40:16 -0300

Try this:

do.call(rbind, lapply(split(dat, dat$Id),

                             function(x)x[sample(1:nrow(x), 1),]))

On 7/9/08, Juliet Hannah <juliet.hannah_at_gmail.com> wrote:
> Using this data as an example
>
> dat <- read.table(textConnection("Id myvar
> 12 1
> 12 2
> 12 6
> 34 9
> 34 4
> 34 8
> 65 15
> 65 23"), header = TRUE)
> closeAllConnections()
>
> how can I create another data set that does not have duplicate entries
> for 'Id', but the included values
> are randomly selected from the available ones.
>
> Thanks!
>
> Juliet
>
> ______________________________________________
> 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.
>

-- 
Henrique Dallazuanna
Curitiba-Paraná-Brasil
25° 25' 40" S 49° 16' 22" O

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Received on Wed 09 Jul 2008 - 20:52:02 GMT

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