Prof Brian Ripley wrote: > On Tue, 4 Dec 2007, John Kane wrote: > >> I simply installed R onto a USB stick, downloaded my >> normal packages to it and it works fine under Windows. > > Yes, on Windows, but > > 1) There are other OSes, > > 2) This didn't just happen: it needed some careful design, including > some caching to make it run fast from a USB disk.
Nice to discover good planning. Am I then correct in my understanding: Installing R under Windows does not require any registry entries, the installation is essentially to unpack the necessary files in the correct directories? Tom > > > Unix-alike ports of R are not completely portable, as the path to R_HOME > is encapsulated in the R and Rscript front ends. So if on, say, Linux > you want to plug in a USB disc then it will only work if you installed R > to that USB disk mounted at the same location in the file system, or are > prepared to edit the copies of the R script (which had therefore better > be mounted read-write). > > The standard MacOS build has standard paths encapsulated in many places. > >> >> >> --- Roland Rau <[EMAIL PROTECTED]> wrote: >> >>> Hi Tom, >>> >>> did you check the R for Windows FAQ? >>> >> http://cran.r-project.org/bin/windows/base/rw-FAQ.html#Can-I-run-R-from-a-CD-or-USB-drive_003f >> >> >>> >>> Hope this helps, >>> Roland >>> >>> >>> Tom Backer Johnsen wrote: >>>> Recently I came across an interesting web site: >>>> http://portableapps.com/. The idea is simple, >>> this is software that >>>> is possible to install and run on some type of USB >>> memory, a stick or >>>> one of these hard disks. I can think of a number >>> of situations where >>>> this could be handy. In addition memory sticks >>> are getting cheaper >>>> and more powerful by the day. >>>> >>>> So: Is it possible to run R off one of these >>> sticks? >>>> >>>> I am also informed that it is possible to run >>> Latex in this manner. >>>> >>>> Tom >>>> >>>> ______________________________________________ >>>> 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. >> > -- +----------------------------------------------------------------+ | Tom Backer Johnsen, Psychometrics Unit, Faculty of Psychology | | University of Bergen, Christies gt. 12, N-5015 Bergen, NORWAY | | Tel : +47-5558-9185 Fax : +47-5558-9879 | | Email : [EMAIL PROTECTED] URL : http://www.galton.uib.no/ | +----------------------------------------------------------------+ ______________________________________________ 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.