formals or args question

names(formals(fun))

You need the names of the elements of the list formals produces, not 
their content!

Ales Ziberna

----- Original Message ----- From: "BJ" <erithid at bellsouth.net>
To: <r-help at stat.math.ethz.ch>
Sent: Monday, May 23, 2005 4:45 PM
Subject: [R] formals or args question

Hello again, thank you again for all of your help. I am trying to get 
the
arguments for a function, in a way that I can handle them. If I do
args(fun), it doesnt really do what I want. If I use formals(fun) i get
output like:

$a


$r


$s


Now, lthis is supposedly a list, but if i say formals(a)[[1]], I get
nothing. I am just trying to get a vector with teh arguments  of a
function so I can loop over them.

ex; a<-function(p,r){p+r}

want: vector of c("p", "r")

The documentation for args and formals is quite confusing. Thanks again!
~Erithid