Hello,
Though I'm not the most fluent user of ggplot, I've seen no problem with
the graph, each subgroup of points is over each boxplot.
Maybe what made the difference was the use of ---> ggplot2
not ggplot.
Hope this helps,
Rui Barradas
Em 02-07-2012 10:43, Thaler,Thorn,LAUSANNE,Applied Mathematics escreveu:
Dear all,
I want to get a series of boxplots (grouped by two factors) and I want to
overlay the original observations and the following code does almost what I
want:
library(ggplot)
ddf <- data.frame(x=factor(rep(LETTERS[1:4], each=30)), y = runif(120,0,10),
grp = factor(rep(rep(1:3, 10), 4)))
ggplot(ddf, aes(x, y, colour=grp)) + geom_boxplot() + geom_point()
Yet the position of the points and the position of the boxes on the x-axis is
not the same. I would like that the points are shifted accordingly, such that
they line up with the boxplots. I tried position_dodge:
ggplot(ddf, aes(x, y, colour=grp)) + geom_boxplot() +
geom_point(aes(ymax=max(y)), position = position_dodge(width=.75))
but that did not really help, as all points are now dodged and I just want to
have a fixed offset for each subgroup of points such that the boxplot and the
points are aligned. Any ideas?
Kind Regards,
Thorn Thaler
Mathematician
Applied Mathematics
Nestec Ltd,
Nestlé Research Center
PO Box 44
CH-1000 Lausanne 26
Phone: +41 21 785 8220
Fax: +41 21 785 9486
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and provide commented, minimal, self-contained, reproducible code.
