On Wed, 22 Aug 2007, Williams Scott wrote: > I often run R via a Ceedo virtualisation on a USB drive > (http://www.ceedo.com/) with XP. It costs a few dollars to it this way, > but is a very low stress installation and has worked flawlessly, albeit
It is not necessary though, as R does not need 'virtualisation'. For Windows this is covered in the rw-FAQ Q2.6. > a little slower (barely noticeable). Perhaps the overhead of Credo? Once R starts up (which does take longer on a slow drive) I found no time-able difference in 2.1.x (all the files frequently used from disc are cached on startup). It would be nice to give the R developers the credit for writing R in such a way that it works well from slow media, instead of it being credited to an unnecessary commercial product. > Very handy if you are often working > on various machines without administrator rights (as I do in clinic) - > just plug in your USB and go directly back to your project. It then > removes any trace of you (so they say) when you log out. And you can use > it for other software (within limits though) you might want to carry > around. Many sites would not allow programs to be run from a USB drive or make it a breach of usage conditions to do so. > > Hope that helps. > > Scott > > ____________________________ > Scott Williams MD > Peter MacCallum Cancer Centre > Melbourne > Australia > > -----Original Message----- > From: John Kane [mailto:[EMAIL PROTECTED] > Sent: Tuesday, 21 August 2007 12:28 AM > To: John Kane; Erin Hodgess; r-help@stat.math.ethz.ch > Subject: Re: [R] R on a flash drive > > Oops meant to send this to the list. > --- John Kane <[EMAIL PROTECTED]> wrote: > >> >> --- Erin Hodgess <[EMAIL PROTECTED]> wrote: >> >>> Dear R People: >>> >>> Has anyone run R from a flash drive, please? >>> >>> If so, how did it work, please? >> >> Yes I run R, occasionally, on a USB with no problem >> on >> WindowsXP. It works well, albeit a bit more slowly >> than from the hard drive which is as you would >> expect. >> >> The last time I upgraded the USB (to 2.5.0 ?) I >> simply >> downloaded R and installed it on the USB drive >> rather >> than the C: drive and then installed all my usual >> optional packages using the normal Rgui interface. >> >> I usually have R, Tinn-R and portable versions of >> OpenOoffice.org, and Firefox installed on the USB. >> >> >> Get news delivered with the All new Yahoo! >> Mail. Enjoy RSS feeds right on your Mail page. >> Start today at >> http://mrd.mail.yahoo.com/try_beta?.intl=ca >> > > ______________________________________________ > R-help@stat.math.ethz.ch 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. > -- Brian D. Ripley, [EMAIL PROTECTED] Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272866 (PA) Oxford OX1 3TG, UK Fax: +44 1865 272595 ______________________________________________ R-help@stat.math.ethz.ch 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.
