R does not need a semicolon or other character to terminate a command; if a line can be interpreted as a complete command, it will (first line in your second example).
Also note that the first example may not produce what you want (if your second example is any indication) - the result of pbivnorm(aa,dd,tau) is added to the sum of the first two terms, because the two minuses give a plus: > 1- -1 [1] 2 Peter On Sun, Aug 2, 2015 at 9:05 PM, Steven Yen <sye...@gmail.com> wrote: > I have a line containing summation of four components. > > # This works OK: > p<-pbivnorm(bb,dd,tau)+pbivnorm(aa,cc,tau)- > -pbivnorm(aa,dd,tau)-pbivnorm(bb,cc,tau) > > # This produces unpredicted results without warning: > p<-pbivnorm(bb,dd,tau)+pbivnorm(aa,cc,tau) > -pbivnorm(aa,dd,tau)-pbivnorm(bb,cc,tau) > > Is there a general rule of thumb for line breaks? Thanks you. > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see > 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. ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.
