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 <gpet...@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 <gpet...@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/ > > ______________________________________________ > 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. > > > > > -- > 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 > Fax (F): +33 - (0)9 58 10 27 44 > > Fax (D): +49 - (0)3 21 21 25 22 44 > > email: rai...@krugs.de > > Skype: RMkrug > ______________________________________________ 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.
