tag:blogger.com,1999:blog-608528753722196209.post3530649606833381320..comments2024-01-26T13:08:26.506-08:00Comments on Cybermetrics: An Attempt To Measure Park Effects From 1934Cyril Moronghttp://www.blogger.com/profile/07148864847009186694noreply@blogger.comBlogger5125tag:blogger.com,1999:blog-608528753722196209.post-14232433722992900832011-01-28T06:43:51.143-08:002011-01-28T06:43:51.143-08:00Thanks for dropping by and commenting. I think you...Thanks for dropping by and commenting. I think you're right and modern park effects are much better than this. But I think we have to remember that he wrote this in 1934 and it may have been the first serious attempt to take park effects into account.Cyril Moronghttps://www.blogger.com/profile/07148864847009186694noreply@blogger.comtag:blogger.com,1999:blog-608528753722196209.post-41327576677730098442011-01-28T06:05:29.696-08:002011-01-28T06:05:29.696-08:00This doesn't appear to take into account how a...This doesn't appear to take into account how a team can affect the ballpark's average. <br /><br />Since Philly plays 1/2 of its games at it's home stadium, half of the data is weighted to how good the hitters/pitchers are.<br /><br />To be truely fair, you have to extrapalate the weights properly.<br /><br />Home field at bats have to count only 1 fraction of the total. Each away team has to be given the same weight towards the statistics here.<br /><br />Think about this. At Philly...<br /><br />Philly has 5000 at bats<br />SF has 1000 at bats<br />NY has 1000 at bats<br />DT has 1000 at bats<br />AT has 1000 at bats<br />BX has 1000 at bats<br /><br />If you simply took the average .BA you would be weighting the home teams contribution at 5 times the value of the away teams. <br /><br />To remove the bias of the home team, simply divide the home teams contribution by the number of teams in the league. Do the same with pitching.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-608528753722196209.post-40590171783641357192011-01-26T14:07:42.071-08:002011-01-26T14:07:42.071-08:00I guess I should have said, how he enjoyed eating ...I guess I should have said, how he enjoyed eating his arithmetic book?vinnienoreply@blogger.comtag:blogger.com,1999:blog-608528753722196209.post-59288528708931125652011-01-25T18:07:01.338-08:002011-01-25T18:07:01.338-08:00Sorry, until today I had never heard of him. So I ...Sorry, until today I had never heard of him. So I don't know.Cyril Moronghttps://www.blogger.com/profile/07148864847009186694noreply@blogger.comtag:blogger.com,1999:blog-608528753722196209.post-52608893638409532252011-01-25T15:31:06.486-08:002011-01-25T15:31:06.486-08:00Does history record how Mr. Pratt enjoyed his book...Does history record how Mr. Pratt enjoyed his book?vinnienoreply@blogger.com