Dempster's pitches at ACB

I posted an entry on Dempster's pitches at Another Cubs Blog.
Take a look.

Updated: k-means clusters seems to have worked - here's the end of the info posted at ACB:

C	mph	pfx_x	pfx_z	spin(deg)	spin(rpm)
1	91.8	-9.3	7.1	232.6	1493.2
2	85.4	-0.9	0.4	189.3	233.3
3	83.0	-9.2	4.9	242.0	1209.4