[R] Some kind of inverse of "names"

[Søren Højsgaard]

Is this what you want?:

> li <- list(a=1, b=2, c=3, d=4)
> li
$a
[1] 1
$b
[1] 2
$c
[1] 3
$d
[1] 4

> unlist(li)
a b c d 
1 2 3 4 
> unname(unlist(li))
[1] 1 2 3 4

Regards
Søren


-----Original Message-----
From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org] On Behalf Of Julio Sergio Santana
Sent: 21. august 2012 00:20
To: r-help at r-project.org
Subject: [R] Some kind of inverse of "names"

I wonder if there exists some kind of inverse of the "names" primitive in R. Let me explain what do I mean:

If I create a list:
  -> li <- list(a=1, b=2, c=3, d=4)
then I can have:
  -> names(li)
  [1] "a" "b" "c" "d"
which is, I guess, some kind of vector, since
  -> typeof(names(li))
  [1] "character"
however, I haven't seen something that allows me to get the other side, i.e., the values.
Something like:
  ->VALUES(li)
  [1] 1 2 3 4

Do you have any comments on this?


Thanks,
  - Sergio.

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