Map density to fill not colour

[alanocallaghan]

Would be very cool to be able to set pch=21 and then map the point fill to density. Perhaps this is obvious but not to me. I tried

ggplot(mtcars) + geom_pointdensity(shape = 21, aes(mpg, cyl, fill=stat(density)))

But I get

Error: Aesthetics must be valid computed stats. Problematic aesthetic(s): fill = stat(density). 
Did you map your stat in the wrong layer?

[LKremer]

In the CRAN version of the package, the stat is called "n_neighbors" and not "density", so I think that's why your code is not working.

In the never dev version of the package I renamed the stat from n_neighbors to density (cause it's a more obvious choice as demonstrated by this whole issue :D ) and your code works just fine. So the easiest solution is to update to the dev version of the package like this: remotes::install_github("LKremer/ggpointdensity").

Alternatively you can also keep the CRAN version of the package and try to use stat(n_neighbors), but I haven't tested this solution.

[alanocallaghan]

Missed this solution, thanks!