From ripley at stats.ox.ac.uk  Wed Jul 11 06:48:56 2007
From: ripley at stats.ox.ac.uk (Prof Brian Ripley)
Date: Wed, 11 Jul 2007 05:48:56 +0100 (BST)
Subject: [Rd] Getting param names of primitives
In-Reply-To: <d35b9da60707102141q60586e66w88a4b991595edcd0@mail.gmail.com>
References: <d35b9da60707102141q60586e66w88a4b991595edcd0@mail.gmail.com>
Message-ID: <Pine.LNX.4.64.0707110546480.27029@gannet.stats.ox.ac.uk>

> formals(args(log))
$x


$base
exp(1)

gives what formals(log) used to.

On Wed, 11 Jul 2007, miguel manese wrote:

> Hi,
>
> In the latest R this does not work anymore
>
> args <- formals(log)
>
> because log is primitive. Is there any other way to get the argument
> list? I just need the name of the parameter to display some error
> message about it. I have looked at args() but I can't find anything to
> extract the argument names from it.
>
> Thanks,
> M. Manese

-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
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[Rd] Getting param names of primitives
Prof Brian Ripley