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+<!DOCTYPE html >
+<html>
+        <head>
+          <title>PersistentModelLoader - PredictionIO Scala API 
0.12.0-incubating - 
org.apache.predictionio.controller.PersistentModelLoader</title>
+          <meta name="description" content="PersistentModelLoader - 
PredictionIO Scala API 0.12.0 - incubating - 
org.apache.predictionio.controller.PersistentModelLoader" />
+          <meta name="keywords" content="PersistentModelLoader PredictionIO 
Scala API 0.12.0 incubating 
org.apache.predictionio.controller.PersistentModelLoader" />
+          <meta http-equiv="content-type" content="text/html; charset=UTF-8" />
+          
+      <link href="../../../../lib/template.css" media="screen" type="text/css" 
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+         if(top === self) {
+            var url = '../../../../index.html';
+            var hash = 
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+            var anchor = window.location.hash;
+            var anchor_opt = '';
+            if (anchor.length >= 1)
+              anchor_opt = '@' + anchor.substring(1);
+            window.location.href = url + '#' + hash + anchor_opt;
+         }
+         </script>
+    
+        </head>
+        <body class="type">
+      <div id="definition">
+        <img alt="Trait" src="../../../../lib/trait_big.png" />
+        <p id="owner"><a href="../../../package.html" class="extype" 
name="org">org</a>.<a href="../../package.html" class="extype" 
name="org.apache">apache</a>.<a href="../package.html" class="extype" 
name="org.apache.predictionio">predictionio</a>.<a href="package.html" 
class="extype" name="org.apache.predictionio.controller">controller</a></p>
+        <h1>PersistentModelLoader</h1><h3><span class="morelinks"><div>Related 
Doc:
+            <a href="package.html" class="extype" 
name="org.apache.predictionio.controller">package controller</a>
+          </div></span></h3><span class="permalink">
+      <a 
href="../../../../index.html#org.apache.predictionio.controller.PersistentModelLoader"
 title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      </div>
+
+      <h4 id="signature" class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">trait</span>
+      </span>
+      <span class="symbol">
+        <span class="name">PersistentModelLoader</span><span 
class="tparams">[<span name="AP">AP &lt;: <a href="Params.html" class="extype" 
name="org.apache.predictionio.controller.Params">Params</a></span>, <span 
name="M">M</span>]</span><span class="result"> extends <a 
href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef"; 
class="extype" target="_top">AnyRef</a></span>
+      </span>
+      </h4>
+      
+          <div id="comment" class="fullcommenttop"><div class="comment 
cmt"><p>Implement an object that extends this trait for PredictionIO to support
+loading a persisted model during serving deployment.
+</p></div><dl class="paramcmts block"><dt class="tparam">AP</dt><dd 
class="cmt"><p>Algorithm parameters class.</p></dd><dt class="tparam">M</dt><dd 
class="cmt"><p>Model class.</p></dd></dl><dl class="attributes block"> <dt>See 
also</dt><dd><span class="cmt"><p><a href="PersistentModel.html" class="extype" 
name="org.apache.predictionio.controller.PersistentModel">PersistentModel</a></p></span></dd></dl><div
 class="toggleContainer block">
+          <span class="toggle">Linear Supertypes</span>
+          <div class="superTypes hiddenContent"><a 
href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef"; 
class="extype" target="_top">AnyRef</a>, <a 
href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any"; class="extype" 
target="_top">Any</a></div>
+        </div><div class="toggleContainer block">
+            <span class="toggle">Known Subclasses</span>
+            <div class="subClasses hiddenContent"><a 
href="IFSPersistentModelLoader.html" class="extype" 
name="org.apache.predictionio.controller.IFSPersistentModelLoader">IFSPersistentModelLoader</a>,
 <a href="IPersistentModelLoader.html" class="extype" 
name="org.apache.predictionio.controller.IPersistentModelLoader">IPersistentModelLoader</a>,
 <a href="LocalFileSystemPersistentModelLoader.html" class="extype" 
name="org.apache.predictionio.controller.LocalFileSystemPersistentModelLoader">LocalFileSystemPersistentModelLoader</a></div>
+          </div></div>
+        
+
+      <div id="mbrsel">
+        <div id="textfilter"><span class="pre"></span><span 
class="input"><input id="mbrsel-input" type="text" accesskey="/" /></span><span 
class="post"></span></div>
+        <div id="order">
+              <span class="filtertype">Ordering</span>
+              <ol>
+                
+                <li class="alpha in"><span>Alphabetic</span></li>
+                <li class="inherit out"><span>By Inheritance</span></li>
+              </ol>
+            </div>
+        <div id="ancestors">
+                <span class="filtertype">Inherited<br />
+                </span>
+                <ol id="linearization">
+                  <li class="in" 
name="org.apache.predictionio.controller.PersistentModelLoader"><span>PersistentModelLoader</span></li><li
 class="in" name="scala.AnyRef"><span>AnyRef</span></li><li class="in" 
name="scala.Any"><span>Any</span></li>
+                </ol>
+              </div><div id="ancestors">
+            <span class="filtertype"></span>
+            <ol>
+              <li class="hideall out"><span>Hide All</span></li>
+              <li class="showall in"><span>Show All</span></li>
+            </ol>
+          </div>
+        <div id="visbl">
+            <span class="filtertype">Visibility</span>
+            <ol><li class="public in"><span>Public</span></li><li class="all 
out"><span>All</span></li></ol>
+          </div>
+      </div>
+
+      <div id="template">
+        <div id="allMembers">
+        
+
+        
+
+        <div id="values" class="values members">
+              <h3>Abstract Value Members</h3>
+              <ol><li 
name="org.apache.predictionio.controller.PersistentModelLoader#apply" 
visbl="pub" data-isabs="true" fullComment="yes" group="Ungrouped">
+      <a 
id="apply(id:String,params:AP,sc:Option[org.apache.spark.SparkContext]):M"></a>
+      <a id="apply(String,AP,Option[SparkContext]):M"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">abstract </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">apply</span><span class="params">(<span 
name="id">id: <span class="extype" 
name="scala.Predef.String">String</span></span>, <span name="params">params: 
<span class="extype" 
name="org.apache.predictionio.controller.PersistentModelLoader.AP">AP</span></span>,
 <span name="sc">sc: <a 
href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Option"; 
class="extype" target="_top">Option</a>[<span class="extype" 
name="org.apache.spark.SparkContext">SparkContext</span>]</span>)</span><span 
class="result">: <span class="extype" 
name="org.apache.predictionio.controller.PersistentModelLoader.M">M</span></span>
+      </span>
+      </h4><span class="permalink">
+      <a 
href="../../../../index.html#org.apache.predictionio.controller.PersistentModelLoader@apply(id:String,params:AP,sc:Option[org.apache.spark.SparkContext]):M"
 title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <p class="shortcomment cmt">Implement this method to restore a persisted 
model that extends the
+<a href="PersistentModel.html" class="extype" 
name="org.apache.predictionio.controller.PersistentModel">PersistentModel</a> 
trait.</p><div class="fullcomment"><div class="comment cmt"><p>Implement this 
method to restore a persisted model that extends the
+<a href="PersistentModel.html" class="extype" 
name="org.apache.predictionio.controller.PersistentModel">PersistentModel</a> 
trait. All arguments of this method are provided
+automatically by PredictionIO.
+</p></div><dl class="paramcmts block"><dt class="param">id</dt><dd 
class="cmt"><p>ID of the run that trained this model.</p></dd><dt 
class="param">params</dt><dd class="cmt"><p>Algorithm parameters that were used 
to train this model.</p></dd><dt class="param">sc</dt><dd class="cmt"><p>An 
optional Apache Spark context. This will be injected if the
+          model was generated by a <a href="PAlgorithm.html" class="extype" 
name="org.apache.predictionio.controller.PAlgorithm">PAlgorithm</a>.</p></dd></dl></div>
+    </li></ol>
+            </div>
+
+        <div id="values" class="values members">
+              <h3>Concrete Value Members</h3>
+              <ol><li name="scala.AnyRef#!=" visbl="pub" data-isabs="false" 
fullComment="yes" group="Ungrouped">
+      <a id="!=(x$1:Any):Boolean"></a>
+      <a id="!=(Any):Boolean"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span title="gt4s: $bang$eq" class="name">!=</span><span 
class="params">(<span name="arg0">arg0: <a 
href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any"; class="extype" 
target="_top">Any</a></span>)</span><span class="result">: <a 
href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean"; 
class="extype" target="_top">Boolean</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a 
href="../../../../index.html#org.apache.predictionio.controller.PersistentModelLoader@!=(x$1:Any):Boolean"
 title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition 
Classes</dt><dd>AnyRef → Any</dd></dl></div>
+    </li><li name="scala.AnyRef###" visbl="pub" data-isabs="false" 
fullComment="yes" group="Ungrouped">
+      <a id="##():Int"></a>
+      <a id="##():Int"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span title="gt4s: $hash$hash" class="name">##</span><span 
class="params">()</span><span class="result">: <a 
href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int"; class="extype" 
target="_top">Int</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a 
href="../../../../index.html#org.apache.predictionio.controller.PersistentModelLoader@##():Int"
 title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition 
Classes</dt><dd>AnyRef → Any</dd></dl></div>
+    </li><li name="scala.AnyRef#==" visbl="pub" data-isabs="false" 
fullComment="yes" group="Ungrouped">
+      <a id="==(x$1:Any):Boolean"></a>
+      <a id="==(Any):Boolean"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span title="gt4s: $eq$eq" class="name">==</span><span 
class="params">(<span name="arg0">arg0: <a 
href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any"; class="extype" 
target="_top">Any</a></span>)</span><span class="result">: <a 
href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean"; 
class="extype" target="_top">Boolean</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a 
href="../../../../index.html#org.apache.predictionio.controller.PersistentModelLoader@==(x$1:Any):Boolean"
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+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition 
Classes</dt><dd>AnyRef → Any</dd></dl></div>
+    </li><li name="scala.Any#asInstanceOf" visbl="pub" data-isabs="false" 
fullComment="yes" group="Ungrouped">
+      <a id="asInstanceOf[T0]:T0"></a>
+      <a id="asInstanceOf[T0]:T0"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">asInstanceOf</span><span class="tparams">[<span 
name="T0">T0</span>]</span><span class="result">: <span class="extype" 
name="scala.Any.asInstanceOf.T0">T0</span></span>
+      </span>
+      </h4><span class="permalink">
+      <a 
href="../../../../index.html#org.apache.predictionio.controller.PersistentModelLoader@asInstanceOf[T0]:T0"
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+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition 
Classes</dt><dd>Any</dd></dl></div>
+    </li><li name="scala.AnyRef#clone" visbl="prt" data-isabs="false" 
fullComment="yes" group="Ungrouped">
+      <a id="clone():Object"></a>
+      <a id="clone():AnyRef"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">clone</span><span class="params">()</span><span 
class="result">: <a 
href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef"; 
class="extype" target="_top">AnyRef</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a 
href="../../../../index.html#org.apache.predictionio.controller.PersistentModelLoader@clone():Object"
 title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> 
<dt>Attributes</dt><dd>protected[<a href="../../../../java$lang.html" 
class="extype" name="java.lang">java.lang</a>] </dd><dt>Definition 
Classes</dt><dd>AnyRef</dd><dt>Annotations</dt><dd>
+                <span class="name">@throws</span><span class="args">(<span>
+      
+      <span class="defval" 
name="classOf[java.lang.CloneNotSupportedException]">...</span>
+    </span>)</span>
+              
+        </dd></dl></div>
+    </li><li name="scala.AnyRef#eq" visbl="pub" data-isabs="false" 
fullComment="yes" group="Ungrouped">
+      <a id="eq(x$1:AnyRef):Boolean"></a>
+      <a id="eq(AnyRef):Boolean"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">eq</span><span class="params">(<span 
name="arg0">arg0: <a 
href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef"; 
class="extype" target="_top">AnyRef</a></span>)</span><span class="result">: <a 
href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean"; 
class="extype" target="_top">Boolean</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a 
href="../../../../index.html#org.apache.predictionio.controller.PersistentModelLoader@eq(x$1:AnyRef):Boolean"
 title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition 
Classes</dt><dd>AnyRef</dd></dl></div>
+    </li><li name="scala.AnyRef#equals" visbl="pub" data-isabs="false" 
fullComment="yes" group="Ungrouped">
+      <a id="equals(x$1:Any):Boolean"></a>
+      <a id="equals(Any):Boolean"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">equals</span><span class="params">(<span 
name="arg0">arg0: <a 
href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any"; class="extype" 
target="_top">Any</a></span>)</span><span class="result">: <a 
href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean"; 
class="extype" target="_top">Boolean</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a 
href="../../../../index.html#org.apache.predictionio.controller.PersistentModelLoader@equals(x$1:Any):Boolean"
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+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition 
Classes</dt><dd>AnyRef → Any</dd></dl></div>
+    </li><li name="scala.AnyRef#finalize" visbl="prt" data-isabs="false" 
fullComment="yes" group="Ungrouped">
+      <a id="finalize():Unit"></a>
+      <a id="finalize():Unit"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">finalize</span><span class="params">()</span><span 
class="result">: <a 
href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit"; 
class="extype" target="_top">Unit</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a 
href="../../../../index.html#org.apache.predictionio.controller.PersistentModelLoader@finalize():Unit"
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+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> 
<dt>Attributes</dt><dd>protected[<a href="../../../../java$lang.html" 
class="extype" name="java.lang">java.lang</a>] </dd><dt>Definition 
Classes</dt><dd>AnyRef</dd><dt>Annotations</dt><dd>
+                <span class="name">@throws</span><span class="args">(<span>
+      
+      <span class="symbol">classOf[java.lang.Throwable]</span>
+    </span>)</span>
+              
+        </dd></dl></div>
+    </li><li name="scala.AnyRef#getClass" visbl="pub" data-isabs="false" 
fullComment="yes" group="Ungrouped">
+      <a id="getClass():Class[_]"></a>
+      <a id="getClass():Class[_]"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">getClass</span><span class="params">()</span><span 
class="result">: <span class="extype" 
name="java.lang.Class">Class</span>[_]</span>
+      </span>
+      </h4><span class="permalink">
+      <a 
href="../../../../index.html#org.apache.predictionio.controller.PersistentModelLoader@getClass():Class[_]"
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+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition 
Classes</dt><dd>AnyRef → Any</dd></dl></div>
+    </li><li name="scala.AnyRef#hashCode" visbl="pub" data-isabs="false" 
fullComment="yes" group="Ungrouped">
+      <a id="hashCode():Int"></a>
+      <a id="hashCode():Int"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">hashCode</span><span class="params">()</span><span 
class="result">: <a 
href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Int"; class="extype" 
target="_top">Int</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a 
href="../../../../index.html#org.apache.predictionio.controller.PersistentModelLoader@hashCode():Int"
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+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition 
Classes</dt><dd>AnyRef → Any</dd></dl></div>
+    </li><li name="scala.Any#isInstanceOf" visbl="pub" data-isabs="false" 
fullComment="yes" group="Ungrouped">
+      <a id="isInstanceOf[T0]:Boolean"></a>
+      <a id="isInstanceOf[T0]:Boolean"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">isInstanceOf</span><span class="tparams">[<span 
name="T0">T0</span>]</span><span class="result">: <a 
href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Boolean"; 
class="extype" target="_top">Boolean</a></span>
+      </span>
+      </h4><span class="permalink">
+      <a 
href="../../../../index.html#org.apache.predictionio.controller.PersistentModelLoader@isInstanceOf[T0]:Boolean"
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+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition 
Classes</dt><dd>Any</dd></dl></div>
+    </li><li name="scala.AnyRef#ne" visbl="pub" data-isabs="false" 
fullComment="yes" group="Ungrouped">
+      <a id="ne(x$1:AnyRef):Boolean"></a>
+      <a id="ne(AnyRef):Boolean"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">ne</span><span class="params">(<span 
name="arg0">arg0: <a 
href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef"; 
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http://git-wip-us.apache.org/repos/asf/predictionio-site/blob/0927bfda/api/current/org/apache/predictionio/controller/QPAMetric.html
----------------------------------------------------------------------
diff --git a/api/current/org/apache/predictionio/controller/QPAMetric.html 
b/api/current/org/apache/predictionio/controller/QPAMetric.html
new file mode 100644
index 0000000..b6f2215
--- /dev/null
+++ b/api/current/org/apache/predictionio/controller/QPAMetric.html
@@ -0,0 +1,511 @@
+<!DOCTYPE html >
+<html>
+        <head>
+          <title>QPAMetric - PredictionIO Scala API 0.12.0-incubating - 
org.apache.predictionio.controller.QPAMetric</title>
+          <meta name="description" content="QPAMetric - PredictionIO Scala API 
0.12.0 - incubating - org.apache.predictionio.controller.QPAMetric" />
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0.12.0 incubating org.apache.predictionio.controller.QPAMetric" />
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+          
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+    
+        </head>
+        <body class="type">
+      <div id="definition">
+        <img alt="Trait" src="../../../../lib/trait_big.png" />
+        <p id="owner"><a href="../../../package.html" class="extype" 
name="org">org</a>.<a href="../../package.html" class="extype" 
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class="extype" name="org.apache.predictionio.controller">controller</a></p>
+        <h1>QPAMetric</h1><h3><span class="morelinks"><div>Related Doc:
+            <a href="package.html" class="extype" 
name="org.apache.predictionio.controller">package controller</a>
+          </div></span></h3><span class="permalink">
+      <a 
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+        <img src="../../../../lib/permalink.png" alt="Permalink" />
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+      </div>
+
+      <h4 id="signature" class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">trait</span>
+      </span>
+      <span class="symbol">
+        <span class="name">QPAMetric</span><span class="tparams">[<span 
name="Q">Q</span>, <span name="P">P</span>, <span name="A">A</span>, <span 
name="R">R</span>]</span><span class="result"> extends <a 
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class="extype" target="_top">AnyRef</a></span>
+      </span>
+      </h4>
+      
+          <div id="comment" class="fullcommenttop"><div class="comment 
cmt"><p>Trait for metric which returns a score based on Query, PredictedResult,
+and ActualResult
+</p></div><dl class="paramcmts block"><dt class="tparam">Q</dt><dd 
class="cmt"><p>Query class</p></dd><dt class="tparam">P</dt><dd 
class="cmt"><p>Predicted result class</p></dd><dt class="tparam">A</dt><dd 
class="cmt"><p>Actual result class</p></dd><dt class="tparam">R</dt><dd 
class="cmt"><p>Metric result class</p></dd></dl><div class="toggleContainer 
block">
+          <span class="toggle">Linear Supertypes</span>
+          <div class="superTypes hiddenContent"><a 
href="http://www.scala-lang.org/api/2.11.8/index.html#scala.AnyRef"; 
class="extype" target="_top">AnyRef</a>, <a 
href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any"; class="extype" 
target="_top">Any</a></div>
+        </div><div class="toggleContainer block">
+            <span class="toggle">Known Subclasses</span>
+            <div class="subClasses hiddenContent"><a href="AverageMetric.html" 
class="extype" 
name="org.apache.predictionio.controller.AverageMetric">AverageMetric</a>, <a 
href="OptionAverageMetric.html" class="extype" 
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href="SumMetric.html" class="extype" 
name="org.apache.predictionio.controller.SumMetric">SumMetric</a></div>
+          </div></div>
+        
+
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+              <ol>
+                
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+              </ol>
+            </div>
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+                <span class="filtertype">Inherited<br />
+                </span>
+                <ol id="linearization">
+                  <li class="in" 
name="org.apache.predictionio.controller.QPAMetric"><span>QPAMetric</span></li><li
 class="in" name="scala.AnyRef"><span>AnyRef</span></li><li class="in" 
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out"><span>All</span></li></ol>
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+        
+
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+
+        <div id="values" class="values members">
+              <h3>Abstract Value Members</h3>
+              <ol><li 
name="org.apache.predictionio.controller.QPAMetric#calculate" visbl="pub" 
data-isabs="true" fullComment="yes" group="Ungrouped">
+      <a id="calculate(q:Q,p:P,a:A):R"></a>
+      <a id="calculate(Q,P,A):R"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">abstract </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">calculate</span><span class="params">(<span 
name="q">q: <span class="extype" 
name="org.apache.predictionio.controller.QPAMetric.Q">Q</span></span>, <span 
name="p">p: <span class="extype" 
name="org.apache.predictionio.controller.QPAMetric.P">P</span></span>, <span 
name="a">a: <span class="extype" 
name="org.apache.predictionio.controller.QPAMetric.A">A</span></span>)</span><span
 class="result">: <span class="extype" 
name="org.apache.predictionio.controller.QPAMetric.R">R</span></span>
+      </span>
+      </h4><span class="permalink">
+      <a 
href="../../../../index.html#org.apache.predictionio.controller.QPAMetric@calculate(q:Q,p:P,a:A):R"
 title="Permalink" target="_top">
+        <img src="../../../../lib/permalink.png" alt="Permalink" />
+      </a>
+    </span>
+      <p class="shortcomment cmt">Calculate a metric result based on query, 
predicted result, and actual
+result
+</p><div class="fullcomment"><div class="comment cmt"><p>Calculate a metric 
result based on query, predicted result, and actual
+result
+</p></div><dl class="paramcmts block"><dt class="param">q</dt><dd 
class="cmt"><p>Query</p></dd><dt class="param">p</dt><dd 
class="cmt"><p>Predicted result</p></dd><dt class="param">a</dt><dd 
class="cmt"><p>Actual result</p></dd><dt>returns</dt><dd class="cmt"><p>Metric 
result</p></dd></dl></div>
+    </li></ol>
+            </div>
+
+        <div id="values" class="values members">
+              <h3>Concrete Value Members</h3>
+              <ol><li name="scala.AnyRef#!=" visbl="pub" data-isabs="false" 
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+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span title="gt4s: $bang$eq" class="name">!=</span><span 
class="params">(<span name="arg0">arg0: <a 
href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Any"; class="extype" 
target="_top">Any</a></span>)</span><span class="result">: <a 
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+      </span>
+      </h4><span class="permalink">
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+    </li><li name="scala.AnyRef###" visbl="pub" data-isabs="false" 
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+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
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+        <span title="gt4s: $hash$hash" class="name">##</span><span 
class="params">()</span><span class="result">: <a 
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+    </li><li name="scala.AnyRef#==" visbl="pub" data-isabs="false" 
fullComment="yes" group="Ungrouped">
+      <a id="==(x$1:Any):Boolean"></a>
+      <a id="==(Any):Boolean"></a>
+      <h4 class="signature">
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+        <span class="modifier">final </span>
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+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
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+      <h4 class="signature">
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+      </span>
+      <span class="symbol">
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+      <span class="symbol">
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+        <span class="name">equals</span><span class="params">(<span 
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+        <span class="name">finalize</span><span class="params">()</span><span 
class="result">: <a 
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class="result">: <span class="extype" 
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+      </span>
+      <span class="symbol">
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class="result">: <a 
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+        <span class="modifier">final </span>
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+        <span class="name">isInstanceOf</span><span class="tparams">[<span 
name="T0">T0</span>]</span><span class="result">: <a 
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name="arg0">arg0: <a 
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+    </li><li name="scala.AnyRef#notify" visbl="pub" data-isabs="false" 
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+      <a id="notify():Unit"></a>
+      <a id="notify():Unit"></a>
+      <h4 class="signature">
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
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class="result">: <a 
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+      </span>
+      <span class="symbol">
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class="result">: <a 
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+        <span class="name">synchronized</span><span class="tparams">[<span 
name="T0">T0</span>]</span><span class="params">(<span name="arg0">arg0: ⇒ 
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+      <a id="wait():Unit"></a>
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+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
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+      <span class="symbol">
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class="result">: <a 
href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit"; 
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+                <span class="name">@throws</span><span class="args">(<span>
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+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
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+      <span class="symbol">
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name="arg0">arg0: <a 
href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Long"; 
class="extype" target="_top">Long</a></span>, <span name="arg1">arg1: <a 
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href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Unit"; 
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+      </span>
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+              
+        </dd></dl></div>
+    </li><li name="scala.AnyRef#wait" visbl="pub" data-isabs="false" 
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+      <a id="wait(x$1:Long):Unit"></a>
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+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
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name="arg0">arg0: <a 
href="http://www.scala-lang.org/api/2.11.8/index.html#scala.Long"; 
class="extype" target="_top">Long</a></span>)</span><span class="result">: <a 
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