Quote:
Originally Posted by TJ Eckleburg12
Some popular projection systems:
ZiPS: 25 HR
Steamer: 28 HR
The BAT: 25 HR
Fangraphs DC: 29 HR (this tends to be one of the most optimistic, especially for young players)
what makes the bat interesting is that the guy who does it claims that it's the only truly independent out out there
all the others use other models as weights, ie steamer may have been closer to 29 and zips closer to 24 but ended up edging towards the median projection of other projections and shaved off or added a home run to be more compliant with the wisdom of the crowd
don't know if that makes it more or less accurate, my guess is less accurate (my own models rely heavily on the wisdom of others) but it's an interesting thing about his system