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Thursday, June 19, 2003
what are the formulas? (formulae?)
wal = (bb + hbp) / (ab + bb + hbp)
con = (ab - k) / (ab)
pow = (tb - h) / (ab - k)
we're including hit by pitch in our walks category because they're basically the same thing.
let's look at a recent mvp controversy:
sosa, 1998: .103 .734 .462 (wal con pow)
mcgwire, 1998: .248 .695 .653 (wal con pow)
as we expect, sosa made more contact while mcgwire walked more and hit harder. compare with stats we know:
sosa, avg/obp/slg: .308/.377/.647
mcgwire, avg/obp/slg: .299/.470/.752
the averages are similar, which suggests that the differences in con and pow balance each other out in that regard.
pitching is slightly different, because they don't give you the same stats:
wal = (bb + hbp) / (bf)
con = (bf - bb - hbp - k) / (bf - bb - hbp)
pow = (tb - h) / (bf - bb - hbp - k)
next time: pitcher examples, league averages.
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