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#1 |
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Join Date: Mar 2002
Location: Tampa, FL USA
Posts: 4,503
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Does Historical import include park factors?
I know when I run the historical import from 1901 - 2006 the stadiums names get changed when the did in real life. Do the park factors also change and are they historically correct?
John
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#2 |
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Join Date: Nov 2002
Location: Queens, NY
Posts: 9,848
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Yes.
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#3 |
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#4 |
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Join Date: Mar 2002
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I don't know if the Park Factors are completely correct (they may be, but I haven't looked into it), but they definitely do change as they go along. My guess would be they generally follow basic guidelines: a pitcher's park might be all .970 rather than having fluctuations for left and right handedness, for example.
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#5 |
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Join Date: Nov 2002
Location: Queens, NY
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They are accurate to the degree that they are accurate in Lahman (as with so many things in historical leagues). So if Lahman has it that the park factor is 97, it will be .970 across the board in OOTP because Lahman doesn't differentiate between lefties, righties, homeruns, hits, doubles, and triples.
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My music "When the trees blow back and forth, that's what makes the wind." - Steven Wright Fjord emena pancreas thorax fornicate marmalade morpheme proteolysis smaxa cabana offal srue vitriol grope hallelujah lentils |
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#6 | |
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Join Date: Mar 2002
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Quote:
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#7 |
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Join Date: Mar 2002
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I was close enough. You just knew more details.
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#8 |
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Join Date: Jun 2004
Posts: 4,254
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The Lahman park factors are Run Factors...and these factors do not even refer to the park itself, rather it refers to the effect playing half of thegames in that park will have on a player's stats.
OOTP uses this factor as component factors which is completely wrong. Custom park factors need to be calculated a different way, and I am currently working on a park factor project based on available Run and HR data for parks pre-1960, and using Retrosheet for component park data for ballparks post-1960. |
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#9 |
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Join Date: Mar 2002
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What's the difference?
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#10 |
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Join Date: Jun 2004
Posts: 4,254
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Well consider a park factor of 90.
1 hit does not = 1 run So you can't say that the hits factor of a park factor of 90 should be .90. That assumes 10% fewer hits means 10% fewer runs...not to mention you would be applying this to extra base hits too. |
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