This is probably one of the most frequently asked questions. The answer is to print() the objects. See R FAQ 7.22.
http://cran.r-project.org/doc/FAQ/R-FAQ.html#Why-do-lattice_002ftrellis-graphics-not-work_003f Regards, Yihui -- Yihui Xie <[email protected]> Phone: 515-294-2465 Web: http://yihui.name Department of Statistics, Iowa State University 2215 Snedecor Hall, Ames, IA On Wed, Dec 7, 2011 at 4:38 PM, Michael <[email protected]> wrote: > I found that if I run each "qplot" manually it would plot out something... > > but if I put it into the loop, > > it just doesn't work at all - sometimes it refused to plot anything... > ______________________________________________ [email protected] 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.
