Hello,
As for convex hulls, there is an example of how to construct a stat_hull in
vignette("extending-ggplot2", package = "ggplot2")
There is also a geom_hull in a GitHub package:
devtools::install_github("cmartin/ggConvexHull")
Hope this helps,
Rui Barradas
Às 17:02 de 21/04/20, Ivan Calandra escreveu:
Dear useRs,
I would like to have horizontal and vertical error bars extending from
the means on two continuous variables.
This would be the "manual" way of doing it, computing the mean and sd
(or whatever stats) beforehand and then calling geom_errorbar() and
geom_errorbarh() with appropriate coordinates:
https://stackoverflow.com/questions/12570816/ggplot-scatter-plot-of-two-groups-with-superimposed-means-with-x-and-y-error-bar
But I am a bit surprised that there is no "built-in" way of doing it
with ggplot2. I mean not having to compute mean and sd beforehand and
not having to call both geom_errorbar() and geom_errorbarh() with a new
set of aesthetics.
In the same idea, I am looking at convex hulls and I was also expecting
to have a built-in way to do this in ggplot2. But I have only found this
"manual" way:
https://stats.stackexchange.com/questions/22805/how-to-draw-neat-polygons-around-scatterplot-regions-in-ggplot2
Thank you in advance for any pointer.
Ivan
______________________________________________
R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
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.
