[R] Synchronizing R libraries on N machines?

[Giovanni Petris]

Hi Rainer,

This certainly helps, but it still requires to do some work by hand. I
was hoping for something more automatic - but so far nobody has
suggested a better approach.

Thank you,
Giovanni


On Thu, 2011-08-25 at 15:43 +0200, Rainer M Krug wrote:
> 
> 
> On Thu, Aug 25, 2011 at 3:25 PM, Giovanni Petris <gpetris at uark.edu>
> wrote:
>         Hello!
>         
>         I am using R on two different machines (under Ubuntu and OS X,
>         but this
>         is probably irrelevant) and I would like to keep the two
>         installations
>         'synchronized', in particular in terms of installed packages.
>         For
>         example, if I install package xxx on my Linux machine, I would
>         like to
>         find it installed also on my Mac, and vice versa.
>         
>         I imagine this to be a fairly common problem, so I would like
>         to ask if
>         anybody has suggestions to share about it. Is there a way to
>         make the
>         synchronization automatic? Painless?
> 
> 
> library()$result[,1] returns the names of the installed packages. If
> you do this on one machine, then compare it with the same outpout on
> the other machine, you can identify the packages which are not
> installed, and you can install those.
> 
> 
> e.g.:
> x <- letters[1:10]
> y <- letters[5:20]
> lx[!(x %in% y)]
> 
> 
> returns 
> "a" "b" "c" "d"
> 
> 
> which are in x, but not y.
> 
> 
> Hope this helps,
> 
> 
> Rainer
> 
> 
> returns the letters which are in 
>         
>         Thank you in advance for the suggestions.
>         
>         Best,
>         Giovanni
>         
>         
>         --
>         
>         Giovanni Petris  <GPetris at uark.edu>
>         Associate Professor
>         Department of Mathematical Sciences
>         University of Arkansas - Fayetteville, AR 72701
>         Ph: (479) 575-6324, 575-8630 (fax)
>         http://definetti.uark.edu/~gpetris/
>         
>         ______________________________________________
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>         http://www.R-project.org/posting-guide.html
>         and provide commented, minimal, self-contained, reproducible
>         code.
> 
> 
> 
> 
> -- 
> Rainer M. Krug, PhD (Conservation Ecology, SUN), MSc (Conservation
> Biology, UCT), Dipl. Phys. (Germany)
> 
> Centre of Excellence for Invasion Biology
> Stellenbosch University
> South Africa
> 
> Tel :       +33 - (0)9 53 10 27 44
> Cell:       +33 - (0)6 85 62 59 98
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> 
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> 
> email:      Rainer at krugs.de
> 
> Skype:      RMkrug
>