I\'m trying to combine multiple density plots with overlay.
ggplot and geom_density do the job, but the densities are stacked on top of each other.
I know this old, but other people with this kind of issue may stumble upon this post, so I thought I'd add a recently discovered solution. There is a new package that was just created to do exactly this type of visualization and it is called ggjoy and is designed to work with the ggplot2 system.
All of the info can be found here: https://github.com/clauswilke/ggjoy
Hope this can be of help!