[R] Installation and packages

Prof Brian Ripley ripley at stats.ox.ac.uk
Mon Jun 25 16:51:21 CEST 2001

On Mon, 25 Jun 2001, Christian Hennig wrote:

> Dear list,
> how can old installed packages be maintained when R is updated (e.g. from
> 1.1.1 to 1.3.0)? Up to now we installed all packages (except the libraries
> which come with the R base) once more in case
> of every R update. Is this really necessary? (Solaris UNIX)

Depends on the update.  To move from 1.1.1 to 1.2.0 or later, yes,
you need to re-install many of the packages as the header files changed
with the new memory management.  I found it hard to guess correctly
which ones, and re-installed all of them.

When I updated our installations on Friday, I installed 1.3.0 over where
1.3.0 had been installed, ran update.packages() and then looked for
files in the installation tree over a day old and deleted a few (the demos
directory for example).

If you have not updated at all since 1.1.1, update.packages() will
re-install all the current packages, as the oldest on CRAN is dated Jan
11, after 1.2.0 came out.  You will then want to REMOVE survival5 and
integrate, which are obselete.

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 272860 (secr)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

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