Yes - all this stuff is currently rather undocumented. Hopefully that will change in the near future!
Hadley On 9/3/07, ONKELINX, Thierry <[EMAIL PROTECTED]> wrote: > Thanks Hadley, > > I've been struggling with this all afternoon. But now it's working > again. Since I'm using it in a script, the few extra lines don't bother > me that much. > > Thierry > > ------------------------------------------------------------------------ > ---- > ir. Thierry Onkelinx > Instituut voor natuur- en bosonderzoek / Research Institute for Nature > and Forest > Cel biometrie, methodologie en kwaliteitszorg / Section biometrics, > methodology and quality assurance > Gaverstraat 4 > 9500 Geraardsbergen > Belgium > tel. + 32 54/436 185 > [EMAIL PROTECTED] > www.inbo.be > > Do not put your faith in what statistics say until you have carefully > considered what they do not say. ~William W. Watt > A statistical analysis, properly conducted, is a delicate dissection of > uncertainties, a surgery of suppositions. ~M.J.Moroney > > > > > -----Oorspronkelijk bericht----- > > Van: hadley wickham [mailto:[EMAIL PROTECTED] > > Verzonden: maandag 3 september 2007 15:15 > > Aan: ONKELINX, Thierry > > CC: r-help@stat.math.ethz.ch > > Onderwerp: Re: [R] Legend issue with ggplot2 > > > > On 9/3/07, ONKELINX, Thierry <[EMAIL PROTECTED]> wrote: > > > Dear useRs, > > > > > > I'm struggling with the new version of ggplot2. In the previous > > > version I did something like this. But now this yield an > > error (object "fill" > > > not found). > > > > > > library(ggplot2) > > > dummy <- data.frame(x = rep(1:10, 4), group = gl(4, 10)) dummy$y <- > > > dummy$x * rnorm(4)[dummy$group] + 5 * rnorm(4)[dummy$group] > > dummy$min > > > <- dummy$y - 5 dummy$max <- dummy$y + 5 ggplot(data = > > dummy, aes(x = > > > x, max = max, min = min, fill = group)) + > > > geom_ribbon() + geom_line(aes(y = max, colour = fill)) + > > > geom_line(aes(y = min, colour = fill)) > > > > Strange - I'm not sure why that ever worked. > > > > > When I adjust the code to the line below, it works again. But this > > > time with two legend keys for "group". Any idea how to display only > > > one legend key for group? The ggplot-code aboved yielded > > only on legend key. > > > > > > ggplot(data = dummy, aes(x = x, max = max, min = min, > > colour = group, > > > fill = group)) + geom_ribbon() + geom_line(aes(y = max)) + > > > geom_line(aes(y = min)) > > > > You can manually turn off one of the legends: > > > > sc <- scale_colour_discrete() > > sc$legend <- FALSE > > .last_plot + sc > > > > It's not very convenient though, so I'll think about how to > > do this automatically. The legends need to be more > > intelligent about only displaying the minimum necessary. > > > > Hadley > > > -- http://had.co.nz/ ______________________________________________ R-help@stat.math.ethz.ch 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.