The standard R mechanisms for installing packages into a different library
apply on Mac OS X just as anywhere else. It was not said that R was being
run from the R.app GUI, but I'll assume that is the case.
The rw-FAQ provides detailed advice for Windows users: see
http://cran.r-project.org/bin/windows/base/rw-FAQ.html#What_0027s-the-best-way-to-upgrade_003f
http://cran.r-project.org/bin/windows/base/rw-FAQ.html#I-don_0027t-have-permission-to-write-to-the-R_002d2_002e7_002e2_005clibrary-directory
The differences for Mac OS users are small -- some of the names and how to
set the library path via R_LIBS.
We arrange not to install packages within .Library on any of our systems
-- and for most users they do not have permission to do so.
On Wed, 27 Aug 2008, William Revelle wrote:
This is actually an R-sig-mac question so I am responding there.
In general, if you want to install a new version without losing the previous
packages, using the finder, go to Library/Receipts and remove the R.app and
R.Gui receipts. Then install the new version. That will keep the previous
packages. This is not mysterious, this is R.
Thanks to Simon et al. for the upgrade.
Bill
At 11:00 PM -0400 8/27/08, Charilaos Skiadas wrote:
On Aug 27, 2008, at 10:40 PM, Rolf Turner wrote:
On 28/08/2008, at 2:02 PM, James Milks wrote:
The title says it all. Does anyone know of a way to save your packages
when you upgrade to a new version of R? This may seem petty, but I'm
accumulating enough packages that having to download and install each of
them anew every time I install a new version of R is rather of a pain.
Ideally, I would like the new version of R to recognize the packages I've
installed on the previous version without needing to reinstall the
packages. Is that possible?
My system: Mac OS 10.5.4.
Current R version: 2.7.1
Mac OS moves in mysterious ways, but apparently your installation moves in
more mysterious
ways than most.
I also (by necessity, not by choice) run Mac OS. But I certainly don't
lose my
packages when I update R. The new version of R certainly ``recognizes''
the packages
that I have installed. No action required.
There may be something funny about *where* you have your packages
installed, and
what environment variables you have set.
To answer your question ``Is that possible?'' --- Yes. Not just possible,
but universal. Except, it would seem, in your case. What have you done
to offend the gods? :-)
Actually have had the same problem as James. By default, unless I'm
mistaken, R will save installed packages within the "R.framework" framework
(system-wide installation). This framework gets completely replaced when a
new version is installed. In my system, the location of these packages is:
/Library/Frameworks/R.framework/Resources/library
So unless I am mistaken you have to take some action to prevent packages
from being installed there. I do hope I am wrong.
cheers,
Rolf Turner
Haris Skiadas
Department of Mathematics and Computer Science
Hanover College
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http://personality-project.org/personality.html
Department of Psychology http://www.wcas.northwestern.edu/psych/
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