[R] upgrade to 2.5

Sundar Dorai-Raj sundar.dorai-raj at pdf.com
Wed May 2 23:43:28 CEST 2007

Robert A LaBudde said the following on 5/2/2007 2:39 PM:
> At 01:41 PM 5/2/2007, you wrote:
>> On 5/2/07, Sundar Dorai-Raj <sundar.dorai-raj at pdf.com> 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.
>>> http://finzi.psych.upenn.edu/R/Rhelp02a/archive/75359.html
>> 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?

Set an environment variable R_LIBS. See the "R Installation and 
Administration" manual (Section 6).



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