[Rd] Problem with args

[Simon Urbanek]

On Apr 21, 2012, at 1:03 PM, Gabor Grothendieck wrote:

> args ought to check that its argument is a function:
> 
>> max <- 3
>> args(max)
> NULL
> 
> e.g.
> 
>> args <- function(name) {
> +     name <- match.fun(name)
> +     base::args(name)
> + }
>> args(max)
> function (..., na.rm = FALSE)
> NULL
> 

You may want to read the docs in the first place:

Value:
[...]

     'NULL' in case of a non-function.

Cheers,
S