Dear all,
I produced the following graph with ggplot which is almost fine, yet I don't
like that the legend for "Means" and "Observations" includes
a line, though no line is used in the plot for those two (the line for
"Overall Mean" on the other hand is wanted):
library(ggplot2)
ddf <- data.frame(x = factor(rep(LETTERS[1:2], 5)), y = rnorm(10))
p <- ggplot(ddf, aes(x = x, y = y))
p + geom_point(aes(colour="Observations",
shape="Observations")) +
stat_summary(aes(colour = "Means", shape ="Means"),
fun.y = mean, fun.ymin = min, fun.ymax = max,
geom = "point") +
geom_hline(aes(yintercept = mean(y), linetype = "Overall Mean"),
show_guide = TRUE)
I tried to map the linetype in geom_point (and stat_summary) to NULL and I tried
to set it to "blank" but neither worked.
Is it furthermore possible to combine the two legends? My preferred plot would
have two symbols with different colours and shapes for "Means" and
"Observations" (but no line) and directly below that a line for
"Overall Mean" (that is all the three items in one legend)? For that I
tried to assign the same names to the legends but this did not work either.
So any help would be highly appreciated.
Kind Regards,
Thorn Thaler
Mathematician
Applied Mathematics
Nestec Ltd,
Nestl? Research Center
PO Box 44
CH-1000 Lausanne 26
Phone: +41 21 785 8220
Fax: +41 21 785 9486
Hi I do not have direct answer. You shall probably search ggplot2 web. Searching "legend" gave me about sixty results from which you probably could learn how to modify legend(s) according to your wish. e.g. http://had.co.nz/ggplot2/docs/opts.html Regards Petr> > Dear all, > > I produced the following graph with ggplot which is almost fine, yet I > don't like that the legend for "Means" and "Observations" includes aline,> though no line is used in the plot for those two (the line for "Overall > Mean" on the other hand is wanted): > > library(ggplot2) > ddf <- data.frame(x = factor(rep(LETTERS[1:2], 5)), y = rnorm(10)) > p <- ggplot(ddf, aes(x = x, y = y)) > p + geom_point(aes(colour="Observations", shape="Observations")) + > stat_summary(aes(colour = "Means", shape ="Means"), > fun.y = mean, fun.ymin = min, fun.ymax = max, > geom = "point") + > geom_hline(aes(yintercept = mean(y), linetype = "Overall Mean"), > show_guide = TRUE) > > I tried to map the linetype in geom_point (and stat_summary) to NULL andI> tried to set it to "blank" but neither worked. > > Is it furthermore possible to combine the two legends? My preferred plot> would have two symbols with different colours and shapes for "Means" and> "Observations" (but no line) and directly below that a line for "Overall> Mean" (that is all the three items in one legend)? For that I tried to > assign the same names to the legends but this did not work either. > > So any help would be highly appreciated. > > Kind Regards, > > Thorn Thaler > Mathematician > > Applied Mathematics > Nestec Ltd, > Nestl? Research Center > PO Box 44 > CH-1000 Lausanne 26 > Phone: +41 21 785 8220 > Fax: +41 21 785 9486 > > ______________________________________________ > R-help at r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guidehttp://www.R-project.org/posting-guide.html> and provide commented, minimal, self-contained, reproducible code.
I played around with this for a while with no success at all. I'd suggest posting the question on the ggplot2 newsgroup in Google Groups John Kane Kingston ON Canada> -----Original Message----- > From: thorn.thaler at rdls.nestle.com > Sent: Tue, 3 Jul 2012 18:50:52 +0200 > To: r-help at r-project.org > Subject: [R] ggplot2: legend > > Dear all, > > I produced the following graph with ggplot which is almost fine, yet I > don't like that the legend for "Means" and "Observations" includes a > line, though no line is used in the plot for those two (the line for > "Overall Mean" on the other hand is wanted): > > library(ggplot2) > ddf <- data.frame(x = factor(rep(LETTERS[1:2], 5)), y = rnorm(10)) > p <- ggplot(ddf, aes(x = x, y = y)) > p + geom_point(aes(colour="Observations", shape="Observations")) + > stat_summary(aes(colour = "Means", shape ="Means"), > fun.y = mean, fun.ymin = min, fun.ymax = max, > geom = "point") + > geom_hline(aes(yintercept = mean(y), linetype = "Overall Mean"), > show_guide = TRUE) > > I tried to map the linetype in geom_point (and stat_summary) to NULL and > I tried to set it to "blank" but neither worked. > > Is it furthermore possible to combine the two legends? My preferred plot > would have two symbols with different colours and shapes for "Means" and > "Observations" (but no line) and directly below that a line for "Overall > Mean" (that is all the three items in one legend)? For that I tried to > assign the same names to the legends but this did not work either. > > So any help would be highly appreciated. > > Kind Regards, > > Thorn Thaler > Mathematician > > Applied Mathematics > Nestec Ltd, > Nestl? Research Center > PO Box 44 > CH-1000 Lausanne 26 > Phone: +41 21 785 8220 > Fax: +41 21 785 9486 > > ______________________________________________ > R-help at 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.____________________________________________________________ FREE ONLINE PHOTOSHARING - Share your photos online with your friends and family! Visit http://www.inbox.com/photosharing to find out more!