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 ______________________________________________ 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.
