Comments on: wRAA http://www.fangraphs.com/library Tue, 07 Feb 2012 01:52:47 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: codeX* http://www.fangraphs.com/library/index.php/offense/wraa/#comment-75603 codeX* Sun, 05 Feb 2012 16:06:21 +0000 http://sabrlibrary.wordpress.com/?page_id=90#comment-75603 typo; multiple=multiply. typo; multiple=multiply.

]]> By: codeX* http://www.fangraphs.com/library/index.php/offense/wraa/#comment-75602 codeX* Sun, 05 Feb 2012 16:05:40 +0000 http://sabrlibrary.wordpress.com/?page_id=90#comment-75602 You divide by 1.15 because that's the number you multiple base OBA to scale it up to a number similar to OBP. It's just a scaling factor to have OBA easily comparable to OBP. Thus, to convert back to wRAA, you must first scale it back down (divide by 1.15) to convert to the actual runs above average. You divide by 1.15 because that’s the number you multiple base OBA to scale it up to a number similar to OBP. It’s just a scaling factor to have OBA easily comparable to OBP. Thus, to convert back to wRAA, you must first scale it back down (divide by 1.15) to convert to the actual runs above average.

]]> By: Sharvey001 http://www.fangraphs.com/library/index.php/offense/wraa/#comment-16863 Sharvey001 Mon, 24 Oct 2011 01:13:36 +0000 http://sabrlibrary.wordpress.com/?page_id=90#comment-16863 Does anyone know why a players Total wRAA doesn't add up to his (wRAA vs LHP) and (wRAA vs RHP)? For some players it is almost exact, but for others such as Ichiro Suzuki it is far off. In 2011 his total wRAA was -15.5. Against LHP his wRAA was -4.4 and against RHP his wRAA was -16.5. Why isn't his total wRAA -20.9? Also, under the VALUE tab his BATTING value is -12.2. I'm trying to estimate a hitters BATTING value vsLHP and vsRHP since it isn't listed on the site. I thought extrapolating using the wRAA for LH and RH splits would be the easiest approach, but for some players the total wRAA doesn't seem to be close to the LH and RH wRAA's added together. Any thoughts would be appreciated. Does anyone know why a players Total wRAA doesn’t add up to his (wRAA vs LHP) and (wRAA vs RHP)? For some players it is almost exact, but for others such as Ichiro Suzuki it is far off. In 2011 his total wRAA was -15.5. Against LHP his wRAA was -4.4 and against RHP his wRAA was -16.5. Why isn’t his total wRAA -20.9? Also, under the VALUE tab his BATTING value is -12.2.

I’m trying to estimate a hitters BATTING value vsLHP and vsRHP since it isn’t listed on the site. I thought extrapolating using the wRAA for LH and RH splits would be the easiest approach, but for some players the total wRAA doesn’t seem to be close to the LH and RH wRAA’s added together. Any thoughts would be appreciated.

]]> By: BeisbolData http://www.fangraphs.com/library/index.php/offense/wraa/#comment-12770 BeisbolData Mon, 19 Sep 2011 19:17:51 +0000 http://sabrlibrary.wordpress.com/?page_id=90#comment-12770 I have the same question as Paul. Why divide by 1.15? What does that constant mean? Will it ever change? Is there a formula to calculate it? I have the same question as Paul.

Why divide by 1.15? What does that constant mean?

Will it ever change? Is there a formula to calculate it?

]]> By: Paul http://www.fangraphs.com/library/index.php/offense/wraa/#comment-10284 Paul Thu, 18 Aug 2011 00:54:50 +0000 http://sabrlibrary.wordpress.com/?page_id=90#comment-10284 Stupid question here- trying to really understand all these number. Why dividide by 1.15? Stupid question here- trying to really understand all these number.

Why dividide by 1.15?

]]> By: Jacob http://www.fangraphs.com/library/index.php/offense/wraa/#comment-10220 Jacob Wed, 17 Aug 2011 15:17:00 +0000 http://sabrlibrary.wordpress.com/?page_id=90#comment-10220 Wouldn't that basically just be wOBA? Wouldn’t that basically just be wOBA?

]]> By: Derek http://www.fangraphs.com/library/index.php/offense/wraa/#comment-10185 Derek Wed, 17 Aug 2011 09:31:10 +0000 http://sabrlibrary.wordpress.com/?page_id=90#comment-10185 Is there an alternate version of this statistic that adjusts for the number of games a given player has played in a season? I know this site keeps tracks of UZR/150, so I couldn't help but wonder if there was an equivalent statistic (wRAA/150, I suppose) that allows you to extrapolate a player's current wRAA to a full season's worth of playing time/compare wRAA of players with a substantially diffeent number of at bats. Is there an alternate version of this statistic that adjusts for the number of games a given player has played in a season? I know this site keeps tracks of UZR/150, so I couldn’t help but wonder if there was an equivalent statistic (wRAA/150, I suppose) that allows you to extrapolate a player’s current wRAA to a full season’s worth of playing time/compare wRAA of players with a substantially diffeent number of at bats.

]]> By: Chip Buck http://www.fangraphs.com/library/index.php/offense/wraa/#comment-3700 Chip Buck Tue, 19 Apr 2011 00:29:44 +0000 http://sabrlibrary.wordpress.com/?page_id=90#comment-3700 It's simple as long as you figure out the wOBA, and know the league average wOBA. In my spreadsheet, I have it as =((AG7-AH7)/1.15)*E7, where AG7 is the actual wOBA; AH7 is the league average wOBA; and E7 is PA. Obviously, your cells could be different depending on what you have in your spreadsheet. It’s simple as long as you figure out the wOBA, and know the league average wOBA. In my spreadsheet, I have it as =((AG7-AH7)/1.15)*E7, where AG7 is the actual wOBA; AH7 is the league average wOBA; and E7 is PA. Obviously, your cells could be different depending on what you have in your spreadsheet.

]]> By: SF 55 for life http://www.fangraphs.com/library/index.php/offense/wraa/#comment-3159 SF 55 for life Fri, 08 Apr 2011 06:04:18 +0000 http://sabrlibrary.wordpress.com/?page_id=90#comment-3159 how would u do this in excel? how would u do this in excel?

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