I find these charts fascinating, so I decided to learn how to make these charts myself, except I'm confused as to how Goldsberry is determining the hexagon sizes by frequency. The tutorials I've seen online would measure relative frequency from the spot of highest frequency; but this is skewed because rim shots are concentrated in one small area, while midrange and 3pt shots are much more spread out. For example, a hexaplot that I produced looks like .
As you can seen, the hexagons are much bigger at the rim due to high volume of attempts concentrated at the rim. So what would be the appropriate way to analyze relative frequency?