Re: [R] upgrade to 2.5

From: Robert A LaBudde <>
Date: Wed, 02 May 2007 17:39:17 -0400

At 01:41 PM 5/2/2007, you wrote:
>On 5/2/07, Sundar Dorai-Raj <> wrote:
> >
> >
> > Iasonas Lamprianou said the following on 5/2/2007 8:25 AM:
> > > Hi I am using R version 2.4.1. How can I upgrade to version 2.5
> without having to install all the packages again?
> > > Thanks
> > > Jason
> > >
> >
> > You may find the following link relevant.
> >
> >
> >
>if you use Windows XP.

This link was useful to me, as I am new to R. (Win2000, R-2.5.0)

What I have been doing is using a file compare utility (Beyond Compare in my case) to move files in the old "library" directory to the new one, if the files are missing in the new one. Then I perform an update.packages command.

This procedure appears to work without problem.

It would seem much preferable to have all packages saved in an installation-independent directory, instead of a "library" directory under R's installation directory. Then, of course, no update would be necessary.

I can't find how this option is settable in R, other than a direct argument to library() or install.package().

How does one shift the R default libraries location to a particular directory?


Robert A. LaBudde, PhD, PAS, Dpl. ACAFS e-mail:
Least Cost Formulations, Ltd.            URL:
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"Vere scire est per causas scire" mailing list PLEASE do read the posting guide and provide commented, minimal, self-contained, reproducible code. Received on Wed 02 May 2007 - 21:54:39 GMT

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