Hi John, thank you for that input.
It could be that the code I wrote here:
http://www.r-statistics.com/2010/04/changing-your-r-upgrading-strategy-and-the-r-code-to-do-it-on-windows/

Should be updated so every time you install a new R version, you run the
code for it to:
1) copy all packages from the old R version to the new R version library
2) update all the packages.

But I have no clue how to do step 1.
How do you find out the latest R version that was install previous to the
current one?
And then, how would you find where it's package library is?
If you could do this in R, then installing a new version of R could be made
simpler for you.

Cheers,
Tal




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On Sun, Nov 14, 2010 at 10:05 PM, John C Frain <frainj@gmail.com> wrote:

> The current method allows one to easily retain several versions
> working in parallel. This particularly important if some package is
> not available in the new version. A few years ago there were problems
> such as these during a major overhaul of the rmetrics group of
> packages. My current practice is to retain older versions until I am
> sure that all I need is available in the new version. Thus I am in
> favour of retaining the current system.
>
> John
>
> On Sunday, Novembe 14, 2010, Uwe Ligges <ligges@statistik.tu-dortmund.de>
> wrote:
> >
> >
> > On 14.11.2010 17:59, Ajay Ohri wrote:
> >
> > wont it make more common sense to make updating packages also as part
> > of every base version install BY Default...... just saying
> >
> >
> > At least I do not like the idea: If I just want to try a beta version, I
> do not want that everything is updated and I can't switch back to my last
> stable version.
> >
> > Uwe Ligges
> >
> >
> >
> >
> >
> > Websites-
> > http://decisionstats.com
> > http://dudeofdata.com
> >
> >
> > Linkedin- www.linkedin.com/in/ajayohri
> >
> >
> >
> >
> >
> > 2010/11/14 Uwe Ligges<ligges@statistik.tu-dortmund.de>:
> >
> > Upgrading is mentioned in the FAQs / R for Windows FAQs.
> >
> > If you have your additionally installed packages in a separate library
> (not
> > the R base library) you can simply run
> >
> > update.packages(checkBuilt=TRUE)
> >
> > If not ...
> >
> > Uwe Ligges
> >
> >
> > On 14.11.2010 15:51, Stephen Liu wrote:
> >
> >
> > Hi all,
> >
> > Win 7 64-bit
> > R version 2.11.1 (2010-05-31)
> >
> > I want to upgrade R to version 2.12.0
> > R-2.12.0 for Windows (32/64 bit)
> > http://cran.r-project.org/bin/windows/base/
> >
> > I found steps on following site;
> > How to upgrade R on windows – another strategy (and the R code to do it)
> >
> >
> http://www.r-statistics.com/2010/04/changing-your-r-upgrading-strategy-and-the-r-code-to-do-it-on-windows/
> >
> >
> > I wonder is there a straight forwards way to upgrade the package direct
> on
> > repo?  TIA
> >
> > B.R.
> > Stephen L
> >
> >
> >
> > ______________________________________________
> > R-help@r-project.org mailing list
> > https://stat.ethz.ch/mailman/listinfo/r-help
> > PLEASE do read the posting guide
> > http://www.R-project.org/posting-guide.html
> > and provide commented, minimal, self-contained, reproducible code.
> >
> >
> > ______________________________________________
> > R-help@r-project.org mailing list
> > https://stat.ethz.ch/mailman/listinfo/r-help
> > PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html
> > and provide commented, minimal, self-contained, reproducible code.
> >
> >
> >
> > ______________________________________________
> > R-help@r-project.org mailing list
> > https://stat.ethz.ch/mailman/listinfo/r-help
> > PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html
> > and provide commented, minimal, self-contained, reproducible code.
> >
>
> --
> John C Frain
> Economics Department
> Trinity College Dublin
> Dublin 2
> Ireland
> www.tcd.ie/Economics/staff/frainj/home.html
> mailto:frainj@tcd.ie
> mailto:frainj@gmail.com
>
> ______________________________________________
> R-help@r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>

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