[R] colname of ... arguments

[Petr PIKAL]

Hi

r-help-bounces at r-project.org napsal dne 11.03.2010 09:34:06:

> 
> David,
> 
> That's useful to highlight my problem.
> If instead of e="e" we use a vector like GreenEyes:
> 
> > GreenEyes=c(1,2,3,4)
> > niceplot(GreenEyes)
> 1 2 3 4
> >
> 
> What I want is niceplot to print "GreenEyes" bot 1 2 3 4
> 
> I want this so I can use it in a legend without having to type in
> "GreenEyes"...

But where is GreenEyes? If it is a name in data.frame or list you can 
access it with any standard extraction ways, like names, colnames, "[".

If it is an object in environment them ls() or ls.str() could be used.

but in any case you would need to tell R which object/name use. The mind 
reading package is AFAIK still only in its beta versions.

Regards
Petr


> 
> 
> On 10 March 2010 23:32, David Winsemius [via R] <
> ml-node+1588214-2107833523-180445 at n4.nabble.com<ml-node%
> 2B1588214-2107833523-180445 at n4.nabble.com>
> > wrote:
> 
> > I think you need to provide a richer example:
> >
> > niceplot<-function(...) {
> >    parms=list(...)
> >
> >   for (x in parms) {
> >     cat(x)
> >   }
> > }
> >  > e="e"
> >
> >  > niceplot(e)
> > e
> >
> > On Mar 10, 2010, at 5:21 PM, ManInMoon wrote:
> >
> > >
> > > I have writtn a function where I pass a variable number of 
arguments.
> > >
> > > I They are vectors and I can manipulate them, but I need to get hold
> > > of the
> > > name for a legend.
> > >
> > > niceplot<-function(...) {
> > >   parms=list(...)
> > >
> > >  for (x in parms) {
> > >    DoSomethingWith(x)
> > >  }
> > >
> > > }
> > >
> > > BUT how how can I get something like namestring(...) of
> > > nameofvector(x)?
> > > --
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