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 -- 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 ______________________________________________ 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.
