[R] geeting name of an object to which a variable refers?

[Liaw, Andy]

 Something like this?

R> f <- function(x) deparse(substitute(x))
R> a <- 1:3
R> f(a)
[1] "a"

Andy

From: new ruser
> 
> #Sorry for the convoluted subject line.
> 
> #I have:
> 
> a=c(1,2,3)
> x=a #example of user supplied input
> 
> 
> #Is there any function that will tell me the "name" of the 
> object x refers to, referring only to x itself? 
> #i.e. the "answer" I want is "a"
> 
> #I want: 
> #fun(x) == 'a'
> 
> #(I don't think this is possible, but figured I'd ask.)
> 
> 
> 
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