Mapping variable to hexagon size with geom_hex

Question

Does anyone know if its possible to map to hexagon size with ggplot? Size is listed as an argument in the geom_hex documentation, but there are no examples of size mapping

Answer 1

Apparently the official answer is that ggplot does not have functionality to map to hexagon area. But as you can see a workaround solution is possible, now posted in a gist at github.