[R] help page becomes unavailable after a package is reinstalled

Prof Brian Ripley ripley at stats.ox.ac.uk
Sat Jul 16 11:02:45 CEST 2011

This is by design, *if* you have already used the help in the package. 
The help database is cached.

I simply don't see you why you believe that you need to save the 200ms 
it takes to start R: you can view the new documentation in a different 
R instance.

On Sat, 16 Jul 2011, Rolf Turner wrote:

> I can verify that I get exactly the same error (also R 2.13.1 under Ubuntu).
> No idea what to *do* about it, though. :-(
>    cheers,
>        Rolf Turner
> On 16/07/11 11:25, Yihui Xie wrote:
>> Hi all,
>> I have noticed this problem ever since R changed its static HTML help
>> pages to dynamic help pages: when I reinstall a package and try to
>> view any help page of this package, I always get this error (in the
>> terminal or html page)
>> Error in fetch(key) : internal error -3 in R_decompress1
>> As a package developer, I often have to reinstall a package again and
>> again, so I wish I do not have to restart R to see the new
>> documentation. Anybody ever met a similar situation and has an idea?
>> Thanks!
>> I use R 2.13.1 under Ubuntu, and it also appears in Windows 7.
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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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