[R] packages across different versions of R

[Prof Brian Ripley]

On 21/07/2014 12:24, Charles Thuo wrote:
>   I have just installed R 3.1.1 in a machine where R 3.0.1 is already
> installed.  Is it possible to use packages in the 3.0.1 on the 3.1.1.
> version as the same are in a single workstation.

Perhaps, perhaps not.  It depends in part on your platform which you 
have not told us (see the posting guide).  It is definitely safer to 
reinstall them.  For Window users see 
http://cran.r-project.org/bin/windows/base/rw-FAQ.html#What_0027s-the-best-way-to-upgrade_003f 
: similar ideas work for other platforms.

The place where using packages for 3.0.1 is least likely to work is OS 
X, but there installing a new binary version of R by default removes 
earlier installations.

>
>
> Charles
>
> 	[[alternative HTML version deleted]]
>
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> and provide commented, minimal, self-contained, reproducible code.
>


-- 
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