from Amazon
Tuesday, November 25, 2008
Ah, so we meet again
Cool article by Pizza. Here are my comments:
My recommended method is what Pizza is doing (Odds Ratio). As Pizza said, in the “something better than nothing” category, you can use the differential method.
Since we know that there is an in-game advantage for the pitcher the first time meeting, it is not a surprise that the first time they meet ever happens to also match the fist time meeting in any game.
So, I’d like to see a control for the meeting within game, and for career. That is, if you look at the 23rd time meeting in a career, and it was the 1st, 2nd or 3rd time meeting in a particular game, how does the graph look? Is the function almost entirely an in-game effect?
Finally, sample size almost certainly accounts for the up-and-down at the end of your graph. Perhaps you can show what the +/- 2 SD range is, based on the binomial, for the number of PAs you have at each level.
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