[Rd] use of depends, suggests, etc

Prof Brian Ripley ripley at stats.ox.ac.uk
Thu Jan 27 23:12:08 CET 2011

On Thu, 27 Jan 2011, Kevin R. Coombes wrote:

> Hi,
> I'm putting together an R package.  In explaining how it works (in the Rd 
> files), I want to refer to another package.  The other package is not used 
> anywhere in the actual code nor in the examples. So, there is no reason to 
> include the other package in the Depends, Suggests, or Imports lines of the 
> DESCRIPTION file.  People will be able to use my package without actually 
> installing the other package.
> However, "R CMD check" warns about "Missing link(s)" when it is checking the 
> cross references in the Rd files.
> What is the preferred way to make this warning go away?

Follow the 'Writing R Extensions' manual.  There is a 3-item bullet 
point in §1.1.1 following

     'The general rules are'

and your claims contradict the third point.

> Thanks in advance,
>    Kevin
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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)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

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