tag:blogger.com,1999:blog-12133335.post1765448382939563000..comments2024-02-13T06:56:14.486-05:00Comments on Walk Like a Sabermetrician: A Replacement Post (brought to you by eMachines)phttp://www.blogger.com/profile/18057215403741682609noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-12133335.post-12811894221778535842007-10-30T20:52:00.000-04:002007-10-30T20:52:00.000-04:00I didn't do a good job of explaining what I meant ...I didn't do a good job of explaining what I meant about the non-average baselines. When I or BBBA or Clay Davenport say that 73% is what we use for replacement level, we mean in terms of runs/out. <BR/><BR/>Tango defines things a bit differently (see post #10 in the linked thread), and so his 73% is the same as others' 73% under certain conditions, but it wouldn't be exactly the same based on how you do his process.<BR/><BR/>I have to admit that I have never sat down and figured out exactly how the two approaches compare, but eyeballing it they are pretty close. And since replacement level is a fuzzy, inexact point anyway, I'm not bothered by estimates being a little bit off from each other.<BR/><BR/>http://baseball-fever.com/showthread.php?t=68383 <BR/><BR/>For individual hitters, the best rate stat as far as I'm concerned is runs above average per PA. Tango, David Smyth, and I all came to this conclusion after a lot of debates at the old FanHome board through the years.phttps://www.blogger.com/profile/18057215403741682609noreply@blogger.comtag:blogger.com,1999:blog-12133335.post-35842668699999327922007-10-30T18:18:00.000-04:002007-10-30T18:18:00.000-04:00Hi p,Thanks for the nice words about my series--yo...Hi p,<BR/><BR/>Thanks for the nice words about my series--your work has been very helpful in getting me up to speed on some of these issues (not that I've mastered everything yet..).<BR/><BR/>I think you mentioned at baseball fever that the issue with using r/o as a rate for players comes up when using non-average baselines, like a 73% replacement level. How much of a difference does it make? And is there a better alternative when dealing with individual hitters (I guess you mentioned RC+/PA?). Thanks--just trying to figure this stuff out.<BR/>-jjinazhttps://www.blogger.com/profile/07697776280178146413noreply@blogger.com