tombar3 wrote:OK, I used Max's spreadsheet and calculated 1923 Ruth's OBP vs LHP which was 0.692 using Toady's post on how to do it. However, when I checked on DD using the card reader 1923 Ruth's OBP vs LHP it was 0.740 with no ballpark effects. Why is there a difference? Then I checked on DD Player Pool with Zero Park Effects for 1923 Ruth's OBP vs LHP which was 0.692. Does anyone know why is the DD card reader number is different at 0.740?
TOMBAR3, I went through the same exercise and also had your same question. It seems clear that Diamond Dope considers "Ignore Park Effect" and 8/8/8/8 field. If you run a player through the Turner '05 field which is 8/8/8/8 you appear (unless I missed something) the same effect as "Ignore Park Effect")
That said I have a very basic question. I keep getting stumped by how to effectively incorporate the park effective into NERP if we are trying to recreate the Diamond Dope figures as a starting point. CAN SOMEONE SHOW ME THE WAY?
I assume that whatever the ballpark factors are, say 8/8/8/8 for example, one uses that figure dividend by 20 (the total number of chances) to show its effect. Thus an 8 factor in a ball park is effective 8/20 or 40%. This much is in the Diamond Dope info page.
Trying to us the MaxPower database which has an >L of 5 and a #L of 8, I am unsure where to go next. I presume that the single and homerun entries (using the lefty side for example purposes) of siL 13.50 and hrL8.3 need to be adjusted by the ball park effect but for the life of my I cannot figure out the correct factor to adjust these figures by.
Hoping someone can explain this to me...cheers.