[R] binding vectors or matrix using their names

[Liaw, Andy]

Perhaps simler:

> x1 <- 1:5
> x2 <- 2:7
> xname <- c("x1", "x2")
> sapply(xname, get)
     x1 x2
[1,]  1  2
[2,]  2  3
[3,]  3  4
[4,]  4  5
[5,]  5  6

HTH,
Andy

> From: Stephane DRAY
> 
> Hi Tom,
> 
> Your approach did not work,
> 
>  > do.call("cbind", as.list(my.names))
>       [,1] [,2]
> [1,] "x"  "x2"
> 
> but it helps me a lot to find the good one:
> 
> do.call("cbind", as.list(parse(text=my.names)))
> 
> Thanks,
> 
> 
> At 14:56 24/03/2004, Tom Blackwell wrote:
> 
> >I believe the syntax is
> >
> >result <- do.call(cbind, as.list(my.names))
> >
> >Haven't checked this on your example, though.
> >
> >-  tom blackwell  -  u michigan medical school  -  ann arbor  -
> >
> >On Wed, 24 Mar 2004, Stephane DRAY wrote:
> >
> > > Hello list,
> > > I have two vectors x and x2:
> > >
> > > x=runif(10)
> > > x2=runif(10)
> > >
> > > and one vectors with their names :
> > >
> > > my.names=c("x","x2")
> > >
> > > I would like to cbind these two vectors using their names 
> contained in the
> > > vector my.names.
> > > I can create a string with comma
> > > ncomma=paste(my.names,collapse=",")
> > >
> > > and now, I just need a function to transform this string 
> into a adequate
> > > argument for cbind:
> > >
> > > cbind(afunction(ncomma))
> > >
> > > Is there in R a function that can do the job ? If not, 
> how can I do it ??
> > >
> > > Thanks in advance,
> > > Sincerely.
> > >
> > >
> > > Stéphane DRAY
> > > 
> > 
> --------------------------------------------------------------
> ------------------------------------
> > >
> > > Département des Sciences Biologiques
> > > Université de Montréal, C.P. 6128, succursale centre-ville
> > > Montréal, Québec H3C 3J7, Canada
> > >
> > > Tel : 514 343 6111 poste 1233
> > > E-mail : stephane.dray at umontreal.ca
> > > 
> > 
> --------------------------------------------------------------
> ------------------------------------
> > >
> > > 
> > Web                                          
> http://www.steph280.freesurf.fr/
> > >
> > > 
> ______________________________________________
> > > R-help at stat.math.ethz.ch mailing list
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> > > PLEASE do read the posting guide! 
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> > >
> >
> >______________________________________________
> >R-help at stat.math.ethz.ch mailing list
> >https://www.stat.math.ethz.ch/mailman/listinfo/r-help
> >PLEASE do read the posting guide! 
> http://www.R-project.org/posting-guide.html
> 
> Stéphane DRAY
> 
> --------------------------------------------------------------
> ------------------------------------ 
> 
> Département des Sciences Biologiques
> Université de Montréal, C.P. 6128, succursale centre-ville
> Montréal, Québec H3C 3J7, Canada
> 
> Tel : 514 343 6111 poste 1233
> E-mail : stephane.dray at umontreal.ca
> --------------------------------------------------------------
> ------------------------------------ 
> 
> Web                                          
> http://www.steph280.freesurf.fr/
> 
> 
> ______________________________________________
> R-help at stat.math.ethz.ch mailing list
> https://www.stat.math.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide! 
> http://www.R-project.org/posting-guide.html
> 
>