On Feb 25, 2011, at 12:23 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
See ?.Platform, more specifically: On Unixen (eg. Linux, OSX) > .Platform$OS.type [1] "unix" and on Windows, will be "windows". If needed, look at the additional functions listed in the See Also on the help page (eg. ?Sys.info, etc.). HTH, Marc Schwartz ______________________________________________ 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.
