On 10-Feb-08 18:07:56, Erin Hodgess wrote: > Hi R People: > > I sure that this is a really easy question, but here goes: > > I'm trying to build a package that will run on both Linux and Windows. > > However, there are several commands in a section that will be > different in Linux than they are in Windows. > > Would I be better off just to build two separate packages, please? > If just one is needed, how could I determine which system is running > in order to use the correct command, please? > > Thanks in advance, > Erin
There is the "version" (a list) variable: version # platform i486-pc-linux-gnu # arch i486 # os linux-gnu # system i486, linux-gnu # status Patched # major 2 # minor 4.0 # year 2006 # month 11 # day 25 # svn rev 39997 # language R from which you can extract the "os" component: version$os # [1] "linux-gnu" I don;t know what this says on a Windows system, but it surely won't mention Linux! So testing this wil enable you to set a flag, e.g. Linux<-ifelse(length(grep("linux",version$os))>0, TRUE, FALSE) if(Linux){window<-function(...) X11(...)} else {window<-function(...) windows(...)} Hoping this helps, Ted. -------------------------------------------------------------------- E-Mail: (Ted Harding) <[EMAIL PROTECTED]> Fax-to-email: +44 (0)870 094 0861 Date: 10-Feb-08 Time: 18:39:29 ------------------------------ XFMail ------------------------------ ______________________________________________ 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.