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Tuesday, April 26, 2005

Correlation Coefficients

As you can see here, I've been known to waste time not only looking at baseball statistics, but also tearing them apart trying to figure out their value.

The purpose of the game is to score runs, of course. However, Runs scored and Runs Batted In are both dependent on the performance batting in front of and behind the hitter who's R & RBI totals are being evaluated. How, then, do we determine which statistics best measure the ability to put runs on the board?

Well, the solution I've decided on is correlation coefficients. So far, I've found the correlation coefficients of ten statistics to Runs scored by team in the year 2004. Below is a table.














Correlation Coefficients
Statisticrr^2
RC27.974052931.948779112
OPS.971285134.943394812
SLG.928675427.862438049
OBP.87539315.766313168
BA.803430282.645500218
IsoP.780822351.609683544
SecA.772199835.59629585
AB/HR-.75255043.566332154
BB/PA.556142432.309294405
BB/K.490739624.240825378

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