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
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
?s 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
>
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 > > ?s 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 >> >