On Wed, Jan 5, 2011 at 10:41 AM, Duncan Murdoch <murdoch.dun...@gmail.com> wrote: > On 11-01-05 8:51 AM, Joshua Wiley wrote: >> >> Hi Aaditya, >> >> I assume you are running some variant of Windows and by the "prompt in >> DOS" you are using cmd.exe. >> >> Perhaps you are already, but from your examples it looks like either >> A) you are not in the same directory as R or B) are not adding the >> path to R in the command. For example, on Windows I always install R >> under C:\R\ so for me inside cmd.exe: >> >> C:\directory> C:\R\R-devel\bin\x64\R >> >> [[[R starts here]]] >> >> alternately you could switch directories over and then just type "R" >> at the console: >> >> C:\directory> cd C:\R\R-devel\bin\x64\ >> C:\R\R-devel\bin\x64> R >> >> [[[R starts here]]] >> >> or since you have set the environment variables: >> >> C:\directory> %R_HOME%\bin\x64\R >> >> [[[R starts here]]] >> >> Alternately, edit the PATH environment variable in Windows and add the >> path to R (i.e., R_HOME\bin\i386\ or whatever it is for you), and you >> should be able to just enter "R" at the command prompt and have it >> start. > > Editing the PATH is probably the best approach, but a lot of people get it > wrong because of misunderstanding how it works: > > - If you change PATH in one process the changes won't propagate anywhere > else, and will be lost as soon as you close that process. That could be a > cmd window, or an R session, or just about any other process that lets you > change environment variables. > > - If you want to make global changes to the PATH, you need to do it in the > control panel "System|Advanced|Environment variables" entries. > > - Often it is good enough to use a more Unix-like approach, and only make > the change at startup of the cmd processor. You use the /k option when > starting cmd if you want to run something on startup. >
You can also use Rcmd.bat, R.bat, Rgui.bat, etc. found at http://batchfiles.googlecode.com Just put any you wish to use anywhere on your path and it will work on all cmd instances and will also work when you install a new version of R since it looks up R's location in the registry. -- Statistics & Software Consulting GKX Group, GKX Associates Inc. tel: 1-877-GKX-GROUP email: ggrothendieck at gmail.com ______________________________________________ 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.