Posted by Jtpsops on 9/7/2016 10:07:00 AM (view original):
Posted by bad_luck on 9/7/2016 10:05:00 AM (view original):
Well, people actually do think slugging percentage is wrong in the way its formula weighs each event. But instead of coming up with a new formula and calling it slugging percentage, they call it something else (wOBA).
Slugging percentage doesn't weigh anything. It's total bases per AB. You count up all the total bases a player achieves and divide it by the number of ABs. There's no weighting or room for interpretation in that. It calculates something specific using concrete values.
WAR doesn't calculate anything specific. It was arbitrarily created to measure "a player's total contribution to his team." There's no way you can ever have a set formula to accurately measure something like that because it's subjective from the get-go.
I get the distinction is hard for you to make though, as you've proven oh so many times already.
Well, there is room for interpretation regarding slugging percentage. When you calculate SLG, you multiply singles by one, doubles by two, etc. Doubles are weighed twice what singles are. Now, I get that it's done that way because you get two bases on a double, but we know that doubles aren't actually twice as valuable as singles.
So we can adjust the weight of each event (.89 for a single, 1.27 for a double, etc) and get a stat that more accurately measures a player's offensive production. The stat isn't called slugging percentage, but it's doing the same thing with different weights.