However, an R session does need to be able to write to a temporary directory, and also needs a `home' directory and at a last resort the latter defaults to the current directory. So you do need to be running on a machine on which you have a writable area.
A policy that says you cannot install a program, but you can run from a CD and you can let such a program write to your area seems full of holes to me. (Ours does not allow low-privilege users to run programs from a CD.)
Also, many organizations ban the use of USB drives for security reasons.
BTW, I believe running R 2.0.x from a CD will be a lot slower than 1.9.1
because of lazy loading and frequent file accesses: that's a theoretical issue we intend to address for 2.1.0, but not one anyone has yet commented that it is a problem.
On Mon, 22 Nov 2004, Jari Oksanen wrote:
On Mon, 2004-11-22 at 02:41, bogdan romocea wrote:Better install and run R from a USB flash drive. This will save you the trouble of re-writing the CD as you upgrade and install new packages. Also, you can simply copy the R installation on your work computer (no install rights needed); R will run.
I think there is a niche (= a hole in the wall) for a live CD: it is cheaper to distribute 20 copies of CD's to your audience than 20 USB memory sticks. Instructions would be welcome.
From: Hans van Walen <hans_at_vanwalen.com>
At work I have no permission to install R. So, would anyone know whether it is possible to create a CD with a running R-installation for a windows(XP) pc? And of course, how to?
Check the file Getting-Started-with-the-Rcmdr.pdf in John Fox's Rcmdr package. You should be able to reach this package by launching help.start(), and then browsing its directory in the help browser window. Go to chapter "7. Some Suggestions for Instructors" which tells you how to make a live CD of R in Windows. I haven't tried this, since I don't have Windows, but I sure will when I got to be an "instructor" in a Windows class.
cheers, jari oksanen -- Jari Oksanen <[EMAIL PROTECTED]>
______________________________________________ [EMAIL PROTECTED] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
-- 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
______________________________________________ [EMAIL PROTECTED] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
