[R] value of variable in ls()

jim holtman jholtman at gmail.com
Sun Oct 18 22:01:33 CEST 2015


Is this what you want::

> a <- 1
> b <- 2
> # get current objects
> x <- ls()
> # create list of values
> my_list <- lapply(x, get)
> # now add the names
> names(my_list) <- x
> my_list  # print values
$a
[1] 1
$b
[1] 2



Jim Holtman
Data Munger Guru

What is the problem that you are trying to solve?
Tell me what you want to do, not how you want to do it.

On Sun, Oct 18, 2015 at 3:16 PM, <ruipbarradas at sapo.pt> wrote:

> Hello,
>
> I'm not sure I understand, but something like this?
>
> a <- 5
> get("a")
>
> See ?get
> Hope this helps,
>
> Rui Barradas
>
>
> Citando Christian Hoffmann <christian at echoffmann.ch>:
>
> > This may seem trivial:
> >
> > ls() gives me names of variables as a character vector. How can I print
> > the values 'behind' those character values:
> >
> > ls()
> >> "a"
> >> a
> >
> > [1] 5
> >
> > How can I do e.g. print("unknown"(ls())) and get the variable values in
> > my current environment?
> >
> > --
> > Christian W. Hoffmann
> > CH - 8915 Hausen am Albis, Schweiz
> > Rigiblickstrasse 15 b, Tel.+41-44-7640853
> > mailto: christian at echoffmann.ch
> > home: www.echoffmann.ch[1]
> >
> > ______________________________________________
> > R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
> > https://stat.ethz.ch/mailman/listinfo/r-help
> > PLEASE do read the posting guide
> > http://www.R-project.org/posting-guide.htmland provide commented,
> > minimal, self-contained, reproducible code.
>
>
>
> Ligações:
> ---------
> [1] http://www.echoffmann.ch
>
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>
> ______________________________________________
> R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
> 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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