No, but fortunately you are off in the weeds. Density has an internally-computed "z" coordinate... you should be looking at ?geom_contour.
On September 17, 2020 7:17:33 PM PDT, H <age...@meddatainc.com> wrote: >I am trying to understand how to map 2D to 3D using ggplot() and >eventually plot_gg(). I am, however, stuck on understanding how to >express the third variable to be mapped. This example: > >ggdiamonds = ggplot(diamonds, aes(x, depth)) + >stat_density_2d(aes(fill = stat(nlevel)), >geom = "polygon", n = 100, bins = 10,contour = TRUE) + >facet_wrap(clarity~.) + >scale_fill_viridis_c(option = "A") > >uses a variable nlevel that I now understand is calculated during the >building of the ggplot but I have not figured out from where it is >calculated or how to specify a variable of my choosing. > >Does anyone have a good reference for understanding how to specify this >variable? Most examples on the 'net seem to use the same dataset but do >not specify this particular aspect... > >______________________________________________ >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. -- Sent from my phone. Please excuse my brevity. ______________________________________________ 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.
