Arroyo Clusters

Looking at all Bronson's PITCHf/x home games, I tried a variety of clusters before finding "the elbow" at k=5.



Here's how the clusters break-out (I'm using median values below, btw):

And here's the PFX and release points - the latter are not included in the cluster analysis, but do provide a good test.



Yes, these images have incorrect labels on the axes....