ManInMoon wrote:
That is quite helpful David

niceplot<-function(...) {
 parms=list(...)
 for (x in parms) {
 xname <- paste(deparse(substitute(x), 500), collapse = "\n")
   cat(xname)
 }
}

GreenEyes=c(1,2,3,4)
niceplot(GreenEyes)
c(1, 2, 3, 4)


BUT what I want is:
 > GreenEyes=c(1,2,3,4)
niceplot(GreenEyes)
"GreenEyes"

That is deparse(substitute(...)), e.g.

> f <- function(...) deparse(substitute(...))
> f(GreenEyes)
[1] "GreenEyes"


Duncan Murdoch


I will use the vector for plotting too, but I need it's name to produce a
legend automatically




On 10 March 2010 23:32, David Scott-6 [via R] <
ml-node+1588213-620034400-180...@n4.nabble.com<ml-node%2b1588213-620034400-180...@n4.nabble.com>
wrote:

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)?
I use the following syntax to get the name of a data object to use in a
title, label or whatever.

xname <- paste(deparse(substitute(x), 500), collapse = "\n")

This is taken from hist.default so at least has some provenance as an
appropriate method.

David Scott

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