[R] Upgrade 'R'

[Gabor Grothendieck]

One possibility is to only keep one version when the third
digit in the version number changes and only create new fresh versions
when the first or second digit in the version number changes. Thus when
going from 2.7.1 to 2.7.2 you could just overwrite the 2.7.1 installation with
the new 2.7.2 installation but when going from 2.7.2 to 2.8.0 you would
create a new parallel installation of R.  AFAIK that has always worked in
the past and is what I normally do.

To overwrite your 2.7.1 with 2.7.2, when installing 2.7.2 just enter
the old folder
path in the "Select Destination Location" screen of the installer.
All your old
settings and libraries will be preserved.  (You will no longer have a
2.7.1 version.)

If you do want to create a new parallel installation when 2.8.0 comes out, say,
there are links in
http://batchfiles.googlecode.com
discussing different methods.  One of these
is provided by movedir.bat or copydir.bat in the batchfiles collection which
can be used to move or copy libraries safely as they will never overwrite.

On Mon, Sep 1, 2008 at 10:04 PM,  <rkevinburton at charter.net> wrote:
> More and more I am getting warnings from packages that I install that the package was built with 2.7.2 (I am running 2.7.1). I would like to upgrade but don't want to loose all of the packages that I have installed and the settings. Is there a way to just "upgrade" without uninstalling and reinstalling 'R'?
>
> Thank you.
>
> Kevin
>
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