I'm trying to use the stat_binhex() in ggplot2 to drop hex tiles on a plot, and the automatic settings vary the color of the bins, depending on count. That is, all the hexes are the same size, but have different colors.
I want to vary the size of the hex symbol itself! so that some are bigger than others... and i also want to vary color based on a third variable. I read through the documentation of ggplot2 and couldn't find any way to do this. The *hexbin* package has an option like this (lattice) but its plot() functions are maddening, so I was hoping to stay in ggplot2. Any other suggestions would be extremely helpful, as well.
If you know Kirk Goldsberry's NBA shot charts on Grantland, that's very similar to what I'd like to accomplish with my dataset.