[R] Should I wrap more package examples in \dontrun{} ?

[Duncan Murdoch]

On 03/09/2013 1:53 PM, Hadley Wickham wrote:
> > As a user of your package, I would find it irritating if example(foo) didn't
> > run anything.   It would be more irritating (and would indicate sloppiness
> > on your part) if the examples failed when I cut and pasted them.  These both
> > suggest leaving the examples running.
> >
> > As the author of your package, it sounds as though you find it quite
> > irritating when other authors break your code.
> >
> > Isn't the right solution to this to work with the other package authors to
> > come up with code that is unlikely to break?  If that's not possible, then
> > maybe don't use those packages that cause you trouble.
>
> It was my understanding that package authors are responsible for not
> breaking other CRAN packages without warning.  For example, before I
> release a new version of plyr or ggplot2, I run R CMD check on every
> package that depends on my package. I then let the maintainers know if
> something is broken - sometimes it's because I introduced a bug, and
> other times it's because I'm enforcing a stricter check than I did
> previously

It sounds as though you're doing the right thing.   Can you describe how 
you determine the set of packages to check, and how you do your checks?  
It would be great if we could convince everyone to follow those steps.

Duncan Murdoch