THE BOOK--Playing The Percentages In Baseball

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Tuesday, February 12, 2008

Day to day Marcel

By Tangotiger, 11:28 AM

Good stuff from Sal.

Note that the “day to day” equation I use is weight = .9994^daysAgo. So, 365 daysAgo gives you a weight of .80, and 730 days ago is .65, etc. Basically, it’s 80% every year. You could make it go back 20 years if you like. For pitchers, it’s .9990^daysAgo.

I was supposed to show how to do a day-to-day Marcel. I’ll post it here, hopefully soon.

(5) Comments • 2008/03/04 • Sabermetrics • Forecasting

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