Hi Hui, May be sessionInfo() is what you are looking for. See ?sessionInfo as well as ?version for more details. You can run the following on your R session and see what comes up:
sessionInfo() sessionInfo()$R.version$platform version$platform Then, you might use ifelse() to set up the right path. HTH, Jorge On Fri, Feb 25, 2011 at 1:23 PM, Hui Du <> wrote: > Hi All, > > I have two Rs, one has been installed in Windows system and > another one has been installed under UNIX system. Is there any environmental > variable or function to tell me which R I am using? The reason that I need > to know it is under different system, the data path could be different. I > want to do something like > > if it is R under Windows > > path = "/ABC" > else if it is R under UNIX, > path = "/DEF" > > Any idea? Thanks. > > Best Regards, > > HXD > > [[alternative HTML version deleted]] > > ______________________________________________ > 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. > [[alternative HTML version deleted]] ______________________________________________ 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.