THE BOOK--Playing The Percentages In Baseball

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Friday, February 13, 2009

R=.50 at BIP = 1500 for BABIP

By Tangotiger, 02:45 PM

That number sounds about right.

PizzaCutter gives these results:
r=.174, BIP=250 ... my equation says: .143
r=.253, BIP=500 ... my equation says: .250
r=.696, BIP=3750 ... my equation says: .714
r=.742, BIP=4000 ... my equation says: .727

I’m happy saying that Pizza’s correlation equation would give us
r=BIP/(BIP+1500)

Good job on Pizza to present the data as he did. Makes my life easier. I hope this post makes it seem useful as to why to present it in terms of r=.50. When BIP=1500, r=.50. So, all you have to do is say when r=.50. You then have an automatic regression equation. I can feel Pizza inching closer to my dark side. Come closer, Pizza. You are almost there.

(47) Comments • 2009/02/18 • Sabermetrics • Statistical_Theory

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THE BOOK--Playing The Percentages In Baseball

Friday, February 13, 2009

R=.50 at BIP = 1500 for BABIP

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