Odp: Problem with retrieving updated variables after attach()

G'day David,

On Tue, 10 Feb 2009 13:23:50 +0100
David Croll <david.croll at gmx.ch> wrote:

  

Well, I knew that attach() only creates a copy of the variables in
the search path.

What I wanted to ask was how to *retrieve* that copy...

 > mat

 id age
1 NA  NA
2 NA  NA
3 NA  NA
4 NA  NA
5 NA  NA  

 > attach(mat)

 > id <<- sample(100,5)
 > age <<- rnorm(5,mean=30)

How can I make a new data frame out of the id and age that were
changed above?
    

R> new.df <- data.frame(id,age)

Or, perhaps more automatic:

R> new.df <- do.call(data.frame, sapply(ls(pos=2), as.name))