And the
ls()[grep("^x\\.[[:digit:]]+$", ls())]
can be simplified to
grep("^x\\.[[:digit:]]+$", ls(), value=TRUE)
Bill Dunlap
Spotfire, TIBCO Software
wdunlap tibco.com
> -----Original Message-----
> From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On
> Behalf
> Of David L Carlson
> Sent: Wednesday, November 07, 2012 8:25 AM
> To: 'Rui Barradas'; 'Erin Hodgess'
> Cc: 'R help'
> Subject: Re: [R] a simple list question
>
> Combining your, Rolf, and Michael's suggestions makes it possible
> to eliminate the lappy():
>
> mget(ls()[grep("^x\\.[[:digit:]]+$", ls())], .GlobalEnv)
>
> ----------------------------------------------
> David L Carlson
> Associate Professor of Anthropology
> Texas A&M University
> College Station, TX 77843-4352
>
> > -----Original Message-----
> > From: r-help-boun...@r-project.org [mailto:r-help-bounces@r-
> > project.org] On Behalf Of Rui Barradas
> > Sent: Wednesday, November 07, 2012 9:49 AM
> > To: Erin Hodgess
> > Cc: R help
> > Subject: Re: [R] a simple list question
> >
> > Hello,
> >
> > My solution is too complicated, the assign() is not needed.
> >
> >
> > lapply( ls()[grep("^x\\.[[:digit:]]+$", ls())], get)
> >
> >
> > Hope this helps,
> >
> > Rui Barradas
> > Em 07-11-2012 11:44, Rui Barradas escreveu:
> > > Hello,
> > >
> > > Try the following.
> > >
> > > x.1 <- 1:3
> > > y.1 <- 1:4
> > > x.2 <- 5:10
> > >
> > >
> > > vecs <- ls()[grep("^x\\.[[:digit:]]+$", ls())]
> > > lapply(vecs, function(.x) assign(.x, get(.x)))
> > >
> > >
> > > Then you can use vecs to attribute names() to the result.
> > >
> > > Hope this helps,
> > >
> > > Rui Barradas
> > >
> > > Em 07-11-2012 05:35, Erin Hodgess escreveu:
> > >> Dear R People
> > >>
> > >> I have a simple list question, please:
> > >>
> > >> I have vectors x.1, x.2,...x.n (each of different lengths) and I
> > would
> > >> like to combine them into a list.
> > >>
> > >> However, I'm sure that there is a better way to do this than to type
> > >> in x <- list(x.1,x.2,x.3,...)
> > >>
> > >>
> > >> Is there a better way to do this, please? I was thinking about
> > >> possibly using grep?
> > >>
> > >> Thanks,
> > >> Sincerely,
> > >> Erin
> > >>
> > >>
> > >
> > > ______________________________________________
> > > 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.
> >
> > ______________________________________________
> > 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.
>
> ______________________________________________
> 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.
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