[R] args() function does not list function prototype for locally-produced/installed R package
rick at rrsanbar.com
Wed Dec 7 19:51:18 CET 2011
Indeed, adding the function names to the NAMESPACE file (in the form:
export(functionName)) solved the problem,
and the args() function displays the function argument lists.
On 12/5/2011 2:49 PM, Duncan Murdoch wrote:
> On 11-12-05 3:04 PM, Rick Reeves wrote:
> > Greetings:
> > I have check the 'Building R Extensions' manual and can find no advice
> > on this issue,
> > so I am asking --
> > I have created an R package consisting entirely of R source code, and
> > created an installer
> > using the R CMD build / R CMD check commands. The package installs
> > correctly, using
> > R CMD install, and the .Rd files for each function (one function per .R
> > / .Rd file) are visible
> > using the '?function' command. However, the 'args(function)' command
> > does not list the
> > function prototype; instead generating the error:
> > Error in args(function) : object "function" not found.
> > Question: If it is possible, what changes do I make to my package and
> > install process to get
> > args() to display the function prototype(s) for the functions in my
> > local package?
> Is the function visible (e.g., if you type the name of the function,
> does it print)? I would guess not: I think you have a NAMESPACE
> file, and you haven't listed this function in it.
> If you don't have a NAMESPACE file, or you do have one and you list
> this function, then I think you need to be more forthcoming with
> accurate information. When I type args(function), I don't get the
> error you get, since "function" is a reserved word:
> > args(function)
> Error: unexpected ')' in "args(function)"
> Duncan Murdoch
> Duncan Murdoch
> R-help at r-project.org mailing list
> PLEASE do read the posting guide
> and provide commented, minimal, self-contained, reproducible code.
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