Thanks Rui for these 2 possibilities; I'll have a look. Any one with pointers for the error bars issue?
Ivan -- Dr. Ivan Calandra TraCEr, laboratory for Traceology and Controlled Experiments MONREPOS Archaeological Research Centre and Museum for Human Behavioural Evolution Schloss Monrepos 56567 Neuwied, Germany +49 (0) 2631 9772-243 https://www.researchgate.net/profile/Ivan_Calandra On 21/04/2020 19:06, Rui Barradas wrote: > 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.
