It seems that several people in this thread assumes that it is easy or even
possible to convince an author of a package to export a given function.
 This is clearly not always true, partly because as an author you gain
additional work by doing this.  The downsides to using ::: is really about
the possibility of the package breaking or misfunctioning, and I don't
really see why this is anyone else's problem.

Best,
Kasper


On Mon, Aug 26, 2013 at 11:38 AM, Hadley Wickham <h.wickham@gmail.com>wrote:

> > I would say that you should certainly state it in the man page, and have
> > something in the DESCRIPTION file as well.  It might be something like
> >
> > Author:  Duncan Murdoch, with code from others (see the man pages)
> >
> > However, I just looked at rgl (a package I maintain), and I see we
> didn't do
> > that.  We have a separate README file listing other credits.
>
> The feedback that I've been getting from CRAN maintainers lately is
> that you have to include all source code contributors in the authors
> field.
>
> Hadley
>
> --
> Chief Scientist, RStudio
> http://had.co.nz/
>
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