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	<title>Comments on: Halfway Awards: Least Offensive Productivity</title>
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	<link>http://www.fangraphs.com/blogs/index.php/halfway-awards-least-offensive-productivity/</link>
	<description>Daily baseball statistical analysis and commentary</description>
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		<title>By: Todd S.</title>
		<link>http://www.fangraphs.com/blogs/index.php/halfway-awards-least-offensive-productivity/#comment-37249</link>
		<dc:creator>Todd S.</dc:creator>
		<pubDate>Fri, 11 Jul 2008 13:15:12 +0000</pubDate>
		<guid isPermaLink="false">http://www.fangraphs.com/blogs/index.php/halfway-awards-least-offensive-productivity/#comment-37249</guid>
		<description>DH?</description>
		<content:encoded><![CDATA[<p>DH?</p>
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		<title>By: Eric Seidman</title>
		<link>http://www.fangraphs.com/blogs/index.php/halfway-awards-least-offensive-productivity/#comment-37183</link>
		<dc:creator>Eric Seidman</dc:creator>
		<pubDate>Thu, 10 Jul 2008 13:43:29 +0000</pubDate>
		<guid isPermaLink="false">http://www.fangraphs.com/blogs/index.php/halfway-awards-least-offensive-productivity/#comment-37183</guid>
		<description>Luke, WPA/LI is context-neutral wins.  It is not blind to the general differences that come with linear weights such as the difference between certain events, but these events do not benefit from the magnitude of the situation at hand.  

So, I&#039;ll continue to tout it as context-neutral wins considering that is its given nickname.  I apologize if the reasoning for the cutoff didn&#039;t meet your approval.  Ultimately, you don&#039;t need to use one, but I chose to here.</description>
		<content:encoded><![CDATA[<p>Luke, WPA/LI is context-neutral wins.  It is not blind to the general differences that come with linear weights such as the difference between certain events, but these events do not benefit from the magnitude of the situation at hand.  </p>
<p>So, I&#8217;ll continue to tout it as context-neutral wins considering that is its given nickname.  I apologize if the reasoning for the cutoff didn&#8217;t meet your approval.  Ultimately, you don&#8217;t need to use one, but I chose to here.</p>
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		<title>By: Luke</title>
		<link>http://www.fangraphs.com/blogs/index.php/halfway-awards-least-offensive-productivity/#comment-37162</link>
		<dc:creator>Luke</dc:creator>
		<pubDate>Thu, 10 Jul 2008 03:41:38 +0000</pubDate>
		<guid isPermaLink="false">http://www.fangraphs.com/blogs/index.php/halfway-awards-least-offensive-productivity/#comment-37162</guid>
		<description>WPA/LI is not completely context-neutral. Stop touting it as such.

Also, your explanation for using a cutoff makes no sense.</description>
		<content:encoded><![CDATA[<p>WPA/LI is not completely context-neutral. Stop touting it as such.</p>
<p>Also, your explanation for using a cutoff makes no sense.</p>
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		<title>By: Eric Seidman</title>
		<link>http://www.fangraphs.com/blogs/index.php/halfway-awards-least-offensive-productivity/#comment-37158</link>
		<dc:creator>Eric Seidman</dc:creator>
		<pubDate>Thu, 10 Jul 2008 02:15:16 +0000</pubDate>
		<guid isPermaLink="false">http://www.fangraphs.com/blogs/index.php/halfway-awards-least-offensive-productivity/#comment-37158</guid>
		<description>The reason I wouldn&#039;t do it for all players is that, even though it&#039;s a counting stat, it counts both ways.  For instance, something like Home Runs is a counting stat that you can&#039;t lose.  Someone with 25 HR is at no risk to be at 24 or 23 the next day.

Something like WPA or WPA/LI can decrease or increase on a game by game basis.  Vizquel may be at a certain low number right now but that could increase or decrease in each plate appearance.

You could use all players but I just didn&#039;t here.</description>
		<content:encoded><![CDATA[<p>The reason I wouldn&#8217;t do it for all players is that, even though it&#8217;s a counting stat, it counts both ways.  For instance, something like Home Runs is a counting stat that you can&#8217;t lose.  Someone with 25 HR is at no risk to be at 24 or 23 the next day.</p>
<p>Something like WPA or WPA/LI can decrease or increase on a game by game basis.  Vizquel may be at a certain low number right now but that could increase or decrease in each plate appearance.</p>
<p>You could use all players but I just didn&#8217;t here.</p>
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		<title>By: JC</title>
		<link>http://www.fangraphs.com/blogs/index.php/halfway-awards-least-offensive-productivity/#comment-37155</link>
		<dc:creator>JC</dc:creator>
		<pubDate>Thu, 10 Jul 2008 02:08:07 +0000</pubDate>
		<guid isPermaLink="false">http://www.fangraphs.com/blogs/index.php/halfway-awards-least-offensive-productivity/#comment-37155</guid>
		<description>Since this is a counting stat, wouldn&#039;t it be better to use all players instead of just players with a qualifying number of at bats?  I was wondering when Omar Vizquel would catch Bartlett, and it turns out he&#039;s already at -1.75.  Tony Pena is even worse at -2.00, but only one of them is still getting regular playing time.  Thanks, Brian Sabean.</description>
		<content:encoded><![CDATA[<p>Since this is a counting stat, wouldn&#8217;t it be better to use all players instead of just players with a qualifying number of at bats?  I was wondering when Omar Vizquel would catch Bartlett, and it turns out he&#8217;s already at -1.75.  Tony Pena is even worse at -2.00, but only one of them is still getting regular playing time.  Thanks, Brian Sabean.</p>
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		<title>By: Eric Seidman</title>
		<link>http://www.fangraphs.com/blogs/index.php/halfway-awards-least-offensive-productivity/#comment-37152</link>
		<dc:creator>Eric Seidman</dc:creator>
		<pubDate>Thu, 10 Jul 2008 00:45:39 +0000</pubDate>
		<guid isPermaLink="false">http://www.fangraphs.com/blogs/index.php/halfway-awards-least-offensive-productivity/#comment-37152</guid>
		<description>Tim, 

WPA/LI is not the WPA of a player divided by the pLI.  It is the WPA divided by the LI for each and every plate appearance over the course of the season then added together.

WPA suffers from game state bias.  For instance, Wright&#039;s PAs may have a higher LI but perhaps Hermida has performed better in situations that would increase his WPA much more.

We have a stat here called WPA/LI if you go to the players individual page or the Win Probability section of the Leaders page.  WPA/LI looks at a player&#039;s win contributions on a neutral scale, so it doesn&#039;t suffer from any bias.

In terms of WPA/LI, Hermida is 0.64, Wright is 2.59.  If you want to see which player has contributed the most on offense, regardless of any bias crucial situations have, WPA is great because it literally tracks win contribution.  WPA/LI is more indicative of the talent level, though.

OPS is a fine stat, I have nothing truly against it, but the Win Probability metrics measure contributions to wins, which would be better in most cases than a stat or slash line.  I like to use everything together.</description>
		<content:encoded><![CDATA[<p>Tim, </p>
<p>WPA/LI is not the WPA of a player divided by the pLI.  It is the WPA divided by the LI for each and every plate appearance over the course of the season then added together.</p>
<p>WPA suffers from game state bias.  For instance, Wright&#8217;s PAs may have a higher LI but perhaps Hermida has performed better in situations that would increase his WPA much more.</p>
<p>We have a stat here called WPA/LI if you go to the players individual page or the Win Probability section of the Leaders page.  WPA/LI looks at a player&#8217;s win contributions on a neutral scale, so it doesn&#8217;t suffer from any bias.</p>
<p>In terms of WPA/LI, Hermida is 0.64, Wright is 2.59.  If you want to see which player has contributed the most on offense, regardless of any bias crucial situations have, WPA is great because it literally tracks win contribution.  WPA/LI is more indicative of the talent level, though.</p>
<p>OPS is a fine stat, I have nothing truly against it, but the Win Probability metrics measure contributions to wins, which would be better in most cases than a stat or slash line.  I like to use everything together.</p>
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		<title>By: Tim</title>
		<link>http://www.fangraphs.com/blogs/index.php/halfway-awards-least-offensive-productivity/#comment-37149</link>
		<dc:creator>Tim</dc:creator>
		<pubDate>Thu, 10 Jul 2008 00:38:46 +0000</pubDate>
		<guid isPermaLink="false">http://www.fangraphs.com/blogs/index.php/halfway-awards-least-offensive-productivity/#comment-37149</guid>
		<description>I have to be straight here...I&#039;m a little new to WPA. But I&#039;ve been going through it...getting more familiar with it...and I noticed the following:

Jeremy Hermidia 1.94 WPA 0.98 pLI
David Wright 1.68 1.01 pLI

Yet Wright is clearly the better offensive player. He leads Hermidia in each and every statistical category...slash line, 1B, 2B, HR, R, RBI, BB, SO....everything. 

So what does WPA/pLI tell me about anything here? Why should we rely on it instead of OPS?</description>
		<content:encoded><![CDATA[<p>I have to be straight here&#8230;I&#8217;m a little new to WPA. But I&#8217;ve been going through it&#8230;getting more familiar with it&#8230;and I noticed the following:</p>
<p>Jeremy Hermidia 1.94 WPA 0.98 pLI<br />
David Wright 1.68 1.01 pLI</p>
<p>Yet Wright is clearly the better offensive player. He leads Hermidia in each and every statistical category&#8230;slash line, 1B, 2B, HR, R, RBI, BB, SO&#8230;.everything. </p>
<p>So what does WPA/pLI tell me about anything here? Why should we rely on it instead of OPS?</p>
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		<title>By: Eric Seidman</title>
		<link>http://www.fangraphs.com/blogs/index.php/halfway-awards-least-offensive-productivity/#comment-37138</link>
		<dc:creator>Eric Seidman</dc:creator>
		<pubDate>Wed, 09 Jul 2008 21:08:28 +0000</pubDate>
		<guid isPermaLink="false">http://www.fangraphs.com/blogs/index.php/halfway-awards-least-offensive-productivity/#comment-37138</guid>
		<description>RSN, I did something at Statistically Speaking not too long ago called &quot;The Oddibe Awards&quot; wherein I found the average slash line in a given season and then found the guy who most closely matched up.  Orlando Hudson was the 2006 winner I believe.  The name came from something RJ Anderson, a friend of mine and senior editor at Beyond the Box Score found, that the average slash line over the last 45-50 years most closely matched the career slash of Oddibe McDowell.</description>
		<content:encoded><![CDATA[<p>RSN, I did something at Statistically Speaking not too long ago called &#8220;The Oddibe Awards&#8221; wherein I found the average slash line in a given season and then found the guy who most closely matched up.  Orlando Hudson was the 2006 winner I believe.  The name came from something RJ Anderson, a friend of mine and senior editor at Beyond the Box Score found, that the average slash line over the last 45-50 years most closely matched the career slash of Oddibe McDowell.</p>
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		<title>By: RSN</title>
		<link>http://www.fangraphs.com/blogs/index.php/halfway-awards-least-offensive-productivity/#comment-37137</link>
		<dc:creator>RSN</dc:creator>
		<pubDate>Wed, 09 Jul 2008 21:02:46 +0000</pubDate>
		<guid isPermaLink="false">http://www.fangraphs.com/blogs/index.php/halfway-awards-least-offensive-productivity/#comment-37137</guid>
		<description>Guys like Orlando Hudson and Blake Dewitt would seem to be locks for the All-Average team...</description>
		<content:encoded><![CDATA[<p>Guys like Orlando Hudson and Blake Dewitt would seem to be locks for the All-Average team&#8230;</p>
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		<title>By: RSN</title>
		<link>http://www.fangraphs.com/blogs/index.php/halfway-awards-least-offensive-productivity/#comment-37136</link>
		<dc:creator>RSN</dc:creator>
		<pubDate>Wed, 09 Jul 2008 20:55:12 +0000</pubDate>
		<guid isPermaLink="false">http://www.fangraphs.com/blogs/index.php/halfway-awards-least-offensive-productivity/#comment-37136</guid>
		<description>Nice.  Also glad I don&#039;t have any of them.

Another fun exercise might be the all-average team.  Guys with a decent number of AB or IP but very little WPA.</description>
		<content:encoded><![CDATA[<p>Nice.  Also glad I don&#8217;t have any of them.</p>
<p>Another fun exercise might be the all-average team.  Guys with a decent number of AB or IP but very little WPA.</p>
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