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 <div class="subTitle">org.apache.edgent.analytics.math3.json</div>
 <h2 title="Class JsonAnalytics" class="title">Class JsonAnalytics</h2>
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 <pre>public class <span class="typeNameLabel">JsonAnalytics</span>
 extends <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></pre>
 <div class="block">Apache Common Math analytics for streams with JSON tuples.</div>
 <dl>
 <dt><span class="seeLabel">See Also:</span></dt>
 <dd><a href="../../../../../../org/apache/edgent/analytics/math3/Aggregations.html" title="class in org.apache.edgent.analytics.math3"><code>Aggregations</code></a></dd>
 </dl>
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 <caption><span>Constructors</span><span class="tabEnd">&nbsp;</span></caption>
 <tr>
 <th class="colOne" scope="col">Constructor and Description</th>
 </tr>
 <tr class="altColor">
 <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../org/apache/edgent/analytics/math3/json/JsonAnalytics.html#JsonAnalytics--">JsonAnalytics</a></span>()</code>&nbsp;</td>
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 <caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd">&nbsp;</span></span><span id="t1" class="tableTab"><span><a href="javascript:show(1);">Static Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd">&nbsp;</span></span></caption>
 <tr>
 <th class="colFirst" scope="col">Modifier and Type</th>
 <th class="colLast" scope="col">Method and Description</th>
 </tr>
 <tr id="i0" class="altColor">
 <td class="colFirst"><code>static &lt;K extends com.google.gson.JsonElement&gt;<br><a href="../../../../../../org/apache/edgent/topology/TStream.html" title="interface in org.apache.edgent.topology">TStream</a>&lt;com.google.gson.JsonObject&gt;</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/edgent/analytics/math3/json/JsonAnalytics.html#aggregate-org.apache.edgent.topology.TWindow-java.lang.String-java.lang.String-org.apache.edgent.analytics.math3.json.JsonUnivariateAggregate...-">aggregate</a></span>(<a href="../../../../../../org/apache/edgent/topology/TWindow.html" title="interface in org.apache.edgent.topology">TWindow</a>&lt;com.google.gson.JsonObject,K&gt;&nbsp;window,
          <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;resultPartitionProperty,
          <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;valueProperty,
          <a href="../../../../../../org/apache/edgent/analytics/math3/json/JsonUnivariateAggregate.html" title="interface in org.apache.edgent.analytics.math3.json">JsonUnivariateAggregate</a>...&nbsp;aggregates)</code>
 <div class="block">Aggregate against a single <code>Numeric</code> variable contained in an JSON object.</div>
 </td>
 </tr>
 <tr id="i1" class="rowColor">
 <td class="colFirst"><code>static &lt;K extends com.google.gson.JsonElement&gt;<br><a href="../../../../../../org/apache/edgent/topology/TStream.html" title="interface in org.apache.edgent.topology">TStream</a>&lt;com.google.gson.JsonObject&gt;</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/edgent/analytics/math3/json/JsonAnalytics.html#aggregate-org.apache.edgent.topology.TWindow-java.lang.String-java.lang.String-org.apache.edgent.function.ToDoubleFunction-org.apache.edgent.analytics.math3.json.JsonUnivariateAggregate...-">aggregate</a></span>(<a href="../../../../../../org/apache/edgent/topology/TWindow.html" title="interface in org.apache.edgent.topology">TWindow</a>&lt;com.google.gson.JsonObject,K&gt;&nbsp;window,
          <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;resultPartitionProperty,
          <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;resultProperty,
          <a href="../../../../../../org/apache/edgent/function/ToDoubleFunction.html" title="interface in org.apache.edgent.function">ToDoubleFunction</a>&lt;com.google.gson.JsonObject&gt;&nbsp;valueGetter,
          <a href="../../../../../../org/apache/edgent/analytics/math3/json/JsonUnivariateAggregate.html" title="interface in org.apache.edgent.analytics.math3.json">JsonUnivariateAggregate</a>...&nbsp;aggregates)</code>
 <div class="block">Aggregate against a single <code>Numeric</code> variable contained in an JSON object.</div>
 </td>
 </tr>
 <tr id="i2" class="altColor">
 <td class="colFirst"><code>static &lt;K extends com.google.gson.JsonElement&gt;<br><a href="../../../../../../org/apache/edgent/function/BiFunction.html" title="interface in org.apache.edgent.function">BiFunction</a>&lt;<a href="http://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;com.google.gson.JsonObject&gt;,K,com.google.gson.JsonObject&gt;</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/edgent/analytics/math3/json/JsonAnalytics.html#aggregateList-java.lang.String-java.lang.String-org.apache.edgent.function.ToDoubleFunction-org.apache.edgent.analytics.math3.json.JsonUnivariateAggregate...-">aggregateList</a></span>(<a href="http://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;resultPartitionProperty,
              <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;resultProperty,
              <a href="../../../../../../org/apache/edgent/function/ToDoubleFunction.html" title="interface in org.apache.edgent.function">ToDoubleFunction</a>&lt;com.google.gson.JsonObject&gt;&nbsp;valueGetter,
              <a href="../../../../../../org/apache/edgent/analytics/math3/json/JsonUnivariateAggregate.html" title="interface in org.apache.edgent.analytics.math3.json">JsonUnivariateAggregate</a>...&nbsp;aggregates)</code>
 <div class="block">Create a Function that aggregates against a single <code>Numeric</code>
  variable contained in an JSON object.</div>
 </td>
 </tr>
 <tr id="i3" class="rowColor">
 <td class="colFirst"><code>static com.google.gson.JsonElement</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/edgent/analytics/math3/json/JsonAnalytics.html#getMvAggregate-com.google.gson.JsonObject-java.lang.String-java.lang.String-org.apache.edgent.analytics.math3.json.JsonUnivariateAggregate-">getMvAggregate</a></span>(com.google.gson.JsonObject&nbsp;jo,
               <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;resultProperty,
               <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;variableName,
               <a href="../../../../../../org/apache/edgent/analytics/math3/json/JsonUnivariateAggregate.html" title="interface in org.apache.edgent.analytics.math3.json">JsonUnivariateAggregate</a>&nbsp;aggregate)</code>
 <div class="block">Get the value of an aggregate computed by a multi-variable aggregation.</div>
 </td>
 </tr>
 <tr id="i4" class="altColor">
 <td class="colFirst"><code>static boolean</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/edgent/analytics/math3/json/JsonAnalytics.html#hasMvAggregate-com.google.gson.JsonObject-java.lang.String-java.lang.String-org.apache.edgent.analytics.math3.json.JsonUnivariateAggregate-">hasMvAggregate</a></span>(com.google.gson.JsonObject&nbsp;jo,
               <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;resultProperty,
               <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;variableName,
               <a href="../../../../../../org/apache/edgent/analytics/math3/json/JsonUnivariateAggregate.html" title="interface in org.apache.edgent.analytics.math3.json">JsonUnivariateAggregate</a>&nbsp;aggregate)</code>
 <div class="block">Check if an aggregation result from a multi-variable aggregation
  is present.</div>
 </td>
 </tr>
 <tr id="i5" class="rowColor">
 <td class="colFirst"><code>static org.apache.commons.math3.util.Pair&lt;<a href="http://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,<a href="../../../../../../org/apache/edgent/analytics/math3/json/JsonUnivariateAggregate.html" title="interface in org.apache.edgent.analytics.math3.json">JsonUnivariateAggregate</a>[]&gt;</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/edgent/analytics/math3/json/JsonAnalytics.html#mkAggregationSpec-java.lang.String-org.apache.edgent.analytics.math3.json.JsonUnivariateAggregate...-">mkAggregationSpec</a></span>(<a href="http://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;variableName,
                  <a href="../../../../../../org/apache/edgent/analytics/math3/json/JsonUnivariateAggregate.html" title="interface in org.apache.edgent.analytics.math3.json">JsonUnivariateAggregate</a>...&nbsp;aggregates)</code>
 <div class="block">Create an aggregation specification.</div>
 </td>
 </tr>
 <tr id="i6" class="altColor">
 <td class="colFirst"><code>static &lt;K extends com.google.gson.JsonElement&gt;<br><a href="../../../../../../org/apache/edgent/topology/TStream.html" title="interface in org.apache.edgent.topology">TStream</a>&lt;com.google.gson.JsonObject&gt;</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/edgent/analytics/math3/json/JsonAnalytics.html#mvAggregate-org.apache.edgent.topology.TWindow-java.lang.String-java.lang.String-java.util.List-">mvAggregate</a></span>(<a href="../../../../../../org/apache/edgent/topology/TWindow.html" title="interface in org.apache.edgent.topology">TWindow</a>&lt;com.google.gson.JsonObject,K&gt;&nbsp;window,
            <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;resultPartitionKeyProperty,
            <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;resultProperty,
            <a href="http://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;org.apache.commons.math3.util.Pair&lt;<a href="http://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,<a href="../../../../../../org/apache/edgent/analytics/math3/json/JsonUnivariateAggregate.html" title="interface in org.apache.edgent.analytics.math3.json">JsonUnivariateAggregate</a>[]&gt;&gt;&nbsp;aggregateSpecs)</code>
 <div class="block">Aggregate against multiple <code>Numeric</code> variables contained in an JSON object.</div>
 </td>
 </tr>
 <tr id="i7" class="rowColor">
 <td class="colFirst"><code>static &lt;K extends com.google.gson.JsonElement&gt;<br><a href="../../../../../../org/apache/edgent/function/BiFunction.html" title="interface in org.apache.edgent.function">BiFunction</a>&lt;<a href="http://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;com.google.gson.JsonObject&gt;,K,com.google.gson.JsonObject&gt;</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/edgent/analytics/math3/json/JsonAnalytics.html#mvAggregateList-java.lang.String-java.lang.String-java.util.List-">mvAggregateList</a></span>(<a href="http://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;resultPartitionKeyProperty,
                <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;resultProperty,
                <a href="http://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;org.apache.commons.math3.util.Pair&lt;<a href="http://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,<a href="../../../../../../org/apache/edgent/analytics/math3/json/JsonUnivariateAggregate.html" title="interface in org.apache.edgent.analytics.math3.json">JsonUnivariateAggregate</a>[]&gt;&gt;&nbsp;aggregateSpecs)</code>
 <div class="block">Create a Function that aggregates multiple <code>Numeric</code>
  variables contained in an JSON object.</div>
 </td>
 </tr>
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 <h3>Methods inherited from class&nbsp;java.lang.<a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></h3>
 <code><a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#clone--" title="class or interface in java.lang">clone</a>, <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#equals-java.lang.Object-" title="class or interface in java.lang">equals</a>, <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#finalize--" title="class or interface in java.lang">finalize</a>, <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#getClass--" title="class or interface in java.lang">getClass</a>, <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#hashCode--" title="class or interface in java.lang">hashCode</a>, <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notify--" title="class or interface in java.lang">notify</a>, <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notifyAll--" title="class or interface in java.lang">notifyAll</a>, <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#toString--" title="class or interface in java.lang">toString</a>, <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait--" title="class or interface in java.lang">wait</a>, <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-" title="class or interface in java.lang">wait</a>, <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-int-" title="class or interface in java.lang">wait</a></code></li>
 </ul>
 </li>
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 <!-- ========= CONSTRUCTOR DETAIL ======== -->
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 <h3>Constructor Detail</h3>
 <a name="JsonAnalytics--">
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 <h4>JsonAnalytics</h4>
 <pre>public&nbsp;JsonAnalytics()</pre>
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 <h3>Method Detail</h3>
 <a name="aggregate-org.apache.edgent.topology.TWindow-java.lang.String-java.lang.String-org.apache.edgent.analytics.math3.json.JsonUnivariateAggregate...-">
 <!--   -->
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 <h4>aggregate</h4>
 <pre>public static&nbsp;&lt;K extends com.google.gson.JsonElement&gt;&nbsp;<a href="../../../../../../org/apache/edgent/topology/TStream.html" title="interface in org.apache.edgent.topology">TStream</a>&lt;com.google.gson.JsonObject&gt;&nbsp;aggregate(<a href="../../../../../../org/apache/edgent/topology/TWindow.html" title="interface in org.apache.edgent.topology">TWindow</a>&lt;com.google.gson.JsonObject,K&gt;&nbsp;window,
                                                                                                     <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;resultPartitionProperty,
                                                                                                     <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;valueProperty,
                                                                                                     <a href="../../../../../../org/apache/edgent/analytics/math3/json/JsonUnivariateAggregate.html" title="interface in org.apache.edgent.analytics.math3.json">JsonUnivariateAggregate</a>...&nbsp;aggregates)</pre>
 <div class="block">Aggregate against a single <code>Numeric</code> variable contained in an JSON object.

  The returned stream contains a tuple for each execution performed against a window partition.
  The tuple is a <code>JsonObject</code> containing:
  <UL>
  <LI> Partition key of type <code>K</code> as a property with key <code>resultPartitionProperty</code>. </LI>
  <LI> Aggregation results as a <code>JsonObject</code> as a property with key <code>valueProperty</code>.
  This results object contains the results of all aggregations defined by <code>aggregates</code> against
  <code>double</code> property with key <code>valueProperty</code>.
  <BR>
  Each <a href="../../../../../../org/apache/edgent/analytics/math3/json/JsonUnivariateAggregate.html" title="interface in org.apache.edgent.analytics.math3.json"><code>JsonUnivariateAggregate</code></a> declares how it represents its aggregation in this result
  object.
  </LI>
  </UL>
  <P>
  For example if the window contains these three tuples (pseudo JSON) for
  partition 3:
  <BR>
  <code>{id=3,reading=2.0}, {id=3,reading=2.6}, {id=3,reading=1.8}</code>
  <BR>
  the resulting aggregation for the stream returned by:
  <BR>
  <code>aggregate(window, "id", "reading", Statistic.MIN, Statistic.MAX)</code>
  <BR>
  would contain this tuple with the maximum and minimum values in the <code>reading</code>
  JSON object:
  <BR>
  <code>{id=3, reading={MIN=1.8, MAX=1.8}}</code>
  </P></div>
 <dl>
 <dt><span class="paramLabel">Type Parameters:</span></dt>
 <dd><code>K</code> - Partition type</dd>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>window</code> - Window to aggregate over.</dd>
 <dd><code>resultPartitionProperty</code> - Property to store the partition key in tuples on the returned stream.</dd>
 <dd><code>valueProperty</code> - JSON property containing the value to aggregate.</dd>
 <dd><code>aggregates</code> - Which aggregations to be performed.</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>Stream that will contain aggregations.</dd>
 </dl>
 </li>
 </ul>
 <a name="aggregate-org.apache.edgent.topology.TWindow-java.lang.String-java.lang.String-org.apache.edgent.function.ToDoubleFunction-org.apache.edgent.analytics.math3.json.JsonUnivariateAggregate...-">
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 <pre>public static&nbsp;&lt;K extends com.google.gson.JsonElement&gt;&nbsp;<a href="../../../../../../org/apache/edgent/topology/TStream.html" title="interface in org.apache.edgent.topology">TStream</a>&lt;com.google.gson.JsonObject&gt;&nbsp;aggregate(<a href="../../../../../../org/apache/edgent/topology/TWindow.html" title="interface in org.apache.edgent.topology">TWindow</a>&lt;com.google.gson.JsonObject,K&gt;&nbsp;window,
                                                                                                     <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;resultPartitionProperty,
                                                                                                     <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;resultProperty,
                                                                                                     <a href="../../../../../../org/apache/edgent/function/ToDoubleFunction.html" title="interface in org.apache.edgent.function">ToDoubleFunction</a>&lt;com.google.gson.JsonObject&gt;&nbsp;valueGetter,
                                                                                                     <a href="../../../../../../org/apache/edgent/analytics/math3/json/JsonUnivariateAggregate.html" title="interface in org.apache.edgent.analytics.math3.json">JsonUnivariateAggregate</a>...&nbsp;aggregates)</pre>
 <div class="block">Aggregate against a single <code>Numeric</code> variable contained in an JSON object.

  The returned stream contains a tuple for each execution performed against a window partition.
  The tuple is a <code>JsonObject</code> containing:
  <UL>
  <LI> Partition key of type <code>K</code> as a property with key <code>resultPartitionProperty</code>. </LI>
  <LI> Aggregation results as a <code>JsonObject</code> as a property with key <code>resultProperty</code>.
  This results object contains the results of all aggregations defined by <code>aggregates</code> against
  value returned by <code>valueGetter</code>.
  <BR>
  Each <a href="../../../../../../org/apache/edgent/analytics/math3/json/JsonUnivariateAggregate.html" title="interface in org.apache.edgent.analytics.math3.json"><code>JsonUnivariateAggregate</code></a> declares how it represents its aggregation in this result
  object.
  </LI>
  </UL></div>
 <dl>
 <dt><span class="paramLabel">Type Parameters:</span></dt>
 <dd><code>K</code> - Partition type</dd>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>window</code> - Window to aggregate over.</dd>
 <dd><code>resultPartitionProperty</code> - Property to store the partition key in tuples on the returned stream.</dd>
 <dd><code>resultProperty</code> - Property to store the aggregations in tuples on the returned stream.</dd>
 <dd><code>valueGetter</code> - How to obtain the single variable from input tuples.</dd>
 <dd><code>aggregates</code> - Which aggregations to be performed.</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>Stream that will contain aggregations.</dd>
 </dl>
 </li>
 </ul>
 <a name="aggregateList-java.lang.String-java.lang.String-org.apache.edgent.function.ToDoubleFunction-org.apache.edgent.analytics.math3.json.JsonUnivariateAggregate...-">
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 <pre>public static&nbsp;&lt;K extends com.google.gson.JsonElement&gt;&nbsp;<a href="../../../../../../org/apache/edgent/function/BiFunction.html" title="interface in org.apache.edgent.function">BiFunction</a>&lt;<a href="http://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;com.google.gson.JsonObject&gt;,K,com.google.gson.JsonObject&gt;&nbsp;aggregateList(<a href="http://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;resultPartitionProperty,
                                                                                                                                               <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;resultProperty,
                                                                                                                                               <a href="../../../../../../org/apache/edgent/function/ToDoubleFunction.html" title="interface in org.apache.edgent.function">ToDoubleFunction</a>&lt;com.google.gson.JsonObject&gt;&nbsp;valueGetter,
                                                                                                                                               <a href="../../../../../../org/apache/edgent/analytics/math3/json/JsonUnivariateAggregate.html" title="interface in org.apache.edgent.analytics.math3.json">JsonUnivariateAggregate</a>...&nbsp;aggregates)</pre>
 <div class="block">Create a Function that aggregates against a single <code>Numeric</code>
  variable contained in an JSON object.

  Calling <code>apply(List&lt;JsonObject&gt;)</code> on the returned <code>BiFunction</code>
  returns a <code>JsonObject</code> containing:
  <UL>
  <LI> Partition key of type <code>K</code> as a property with key <code>resultPartitionProperty</code>. </LI>
  <LI> Aggregation results as a <code>JsonObject</code> as a property with key <code>valueProperty</code>.
  This results object contains the results of all aggregations defined by <code>aggregates</code>
  against the value returned by <code>valueGetter</code>.
  <BR>
  Each <a href="../../../../../../org/apache/edgent/analytics/math3/json/JsonUnivariateAggregate.html" title="interface in org.apache.edgent.analytics.math3.json"><code>JsonUnivariateAggregate</code></a> declares how it represents its aggregation in this result
  object.
  </LI>
  </UL>
  <P>
  For example if the list contains these three tuples (pseudo JSON) for
  partition 3:
  <BR>
  <code>{id=3,reading=2.0}, {id=3,reading=2.6}, {id=3,reading=1.8}</code>
  <BR>
  the resulting aggregation for the JsonObject returned by:
  <BR>
  <code>aggregateList("id", "reading", Statistic.MIN, Statistic.MAX).apply(list, 3)</code>
  <BR>
  would be this tuple with the maximum and minimum values in the <code>reading</code>
  JSON object:
  <BR>
  <code>{id=3, reading={MIN=1.8, MAX=1.8}}</code>
  </P></div>
 <dl>
 <dt><span class="paramLabel">Type Parameters:</span></dt>
 <dd><code>K</code> - Partition type</dd>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>resultPartitionProperty</code> - Property to store the partition key in tuples on the returned stream.</dd>
 <dd><code>resultProperty</code> - Property to store the aggregations in the returned JsonObject.</dd>
 <dd><code>valueGetter</code> - How to obtain the single variable from input tuples.</dd>
 <dd><code>aggregates</code> - Which aggregations to be performed.</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>Function that performs the aggregations.</dd>
 </dl>
 </li>
 </ul>
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 <pre>public static&nbsp;&lt;K extends com.google.gson.JsonElement&gt;&nbsp;<a href="../../../../../../org/apache/edgent/topology/TStream.html" title="interface in org.apache.edgent.topology">TStream</a>&lt;com.google.gson.JsonObject&gt;&nbsp;mvAggregate(<a href="../../../../../../org/apache/edgent/topology/TWindow.html" title="interface in org.apache.edgent.topology">TWindow</a>&lt;com.google.gson.JsonObject,K&gt;&nbsp;window,
                                                                                                       <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;resultPartitionKeyProperty,
                                                                                                       <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;resultProperty,
                                                                                                       <a href="http://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;org.apache.commons.math3.util.Pair&lt;<a href="http://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,<a href="../../../../../../org/apache/edgent/analytics/math3/json/JsonUnivariateAggregate.html" title="interface in org.apache.edgent.analytics.math3.json">JsonUnivariateAggregate</a>[]&gt;&gt;&nbsp;aggregateSpecs)</pre>
 <div class="block">Aggregate against multiple <code>Numeric</code> variables contained in an JSON object.
  <P>
  This is a multi-variable analog of <a href="../../../../../../org/apache/edgent/analytics/math3/json/JsonAnalytics.html#aggregate-org.apache.edgent.topology.TWindow-java.lang.String-java.lang.String-org.apache.edgent.analytics.math3.json.JsonUnivariateAggregate...-"><code>aggregate()</code></a>
  </P>
  <P>
  See <a href="../../../../../../org/apache/edgent/analytics/math3/json/JsonAnalytics.html#mvAggregateList-java.lang.String-java.lang.String-java.util.List-"><code>mvAggregateList()</code></a> for
  a description of the aggregation processing and result stream.
  </P>
  <P>
  Sample use:
  <pre><code>
  // Ingest the data.  The JsonObject tuples have properties:
  //   "id" - the partitionKey
  //   "tx" - a numeric data variable
  //   "rx" - a numeric data variable
  TStream&lt;JsonObject&gt; ingestData = ...

  // Define the tuple variables and their aggregations to compute
  List&lt;Pair&lt;String, JsonUnivariateAggregate[]&gt;&gt; aggSpecs = new ArrayList&lt;&gt;();
  aggSpecs.add(mkAggregationSpec("tx", Statistics.MIN, Statistics.MAX));
  aggSpecs.add(mkAggregationSpec("rx", Statistics.MEAN));

  // Create the window over which to aggregate
  TWindow&lt;JsonObject, JsonElement&gt; window =
     ingestData.last(5, TimeUnit.SECONDS, jo -&gt; jo.get("id"));

  // Create a stream with the aggregations. The result tuples have properties:
  //   "id" - the partitionKey
  //   "aggResults" - the aggregation results
  TStream&lt;JsonObject&gt; aggResults =
     mvAggregate(window, "id", "aggResults", aggSpecs);

  // Create a stream of JsonObject tuples with just the average "rx"
  TStream&lt;JsonObject&gt; avgRx = aggResults.map(
     jo -&gt; {
       JsonObject result = new JsonObject();
       result.add("id", jo.get("id"))
       result.add("avgRx", getMvAggregate(jo, "aggResults", "Rx", Statistic.MEAN);
       return result;
     });
  </code></pre></div>
 <dl>
 <dt><span class="paramLabel">Type Parameters:</span></dt>
 <dd><code>K</code> - Partition type</dd>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>window</code> - the window to compute aggregations over</dd>
 <dd><code>resultPartitionKeyProperty</code> - name of the partition key property in the result</dd>
 <dd><code>resultProperty</code> - name of the aggregation results property in the result</dd>
 <dd><code>aggregateSpecs</code> - see <a href="../../../../../../org/apache/edgent/analytics/math3/json/JsonAnalytics.html#mkAggregationSpec-java.lang.String-org.apache.edgent.analytics.math3.json.JsonUnivariateAggregate...-"><code>mkAggregationSpec()</code></a></dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>TStream&lt;JsonObject&gt; with aggregation results</dd>
 <dt><span class="seeLabel">See Also:</span></dt>
 <dd><a href="../../../../../../org/apache/edgent/analytics/math3/json/JsonAnalytics.html#mvAggregateList-java.lang.String-java.lang.String-java.util.List-"><code>mvAggregateList()</code></a>,
 <a href="../../../../../../org/apache/edgent/analytics/math3/json/JsonAnalytics.html#mkAggregationSpec-java.lang.String-org.apache.edgent.analytics.math3.json.JsonUnivariateAggregate...-"><code>mkAggregationSpec()</code></a>,
 <a href="../../../../../../org/apache/edgent/analytics/math3/json/JsonAnalytics.html#getMvAggregate-com.google.gson.JsonObject-java.lang.String-java.lang.String-org.apache.edgent.analytics.math3.json.JsonUnivariateAggregate-"><code>getMvAggregate()</code></a></dd>
 </dl>
 </li>
 </ul>
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 <pre>public static&nbsp;org.apache.commons.math3.util.Pair&lt;<a href="http://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,<a href="../../../../../../org/apache/edgent/analytics/math3/json/JsonUnivariateAggregate.html" title="interface in org.apache.edgent.analytics.math3.json">JsonUnivariateAggregate</a>[]&gt;&nbsp;mkAggregationSpec(<a href="http://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;variableName,
                                                                                                      <a href="../../../../../../org/apache/edgent/analytics/math3/json/JsonUnivariateAggregate.html" title="interface in org.apache.edgent.analytics.math3.json">JsonUnivariateAggregate</a>...&nbsp;aggregates)</pre>
 <div class="block">Create an aggregation specification.
  <P>
  The aggregation specification specifies a variable name and
  the aggregates to compute on it.
  </P>
  <P>
  The specification can be use with <a href="../../../../../../org/apache/edgent/analytics/math3/json/JsonAnalytics.html#mvAggregateList-java.lang.String-java.lang.String-java.util.List-"><code>mkAggregateList()</code></a></div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>variableName</code> - the name of a <code>Numeric</code> data variable in a JSON object</dd>
 <dd><code>aggregates</code> - the aggregates to compute for the variable</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>the aggregation specification</dd>
 </dl>
 </li>
 </ul>
 <a name="mvAggregateList-java.lang.String-java.lang.String-java.util.List-">
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 <pre>public static&nbsp;&lt;K extends com.google.gson.JsonElement&gt;&nbsp;<a href="../../../../../../org/apache/edgent/function/BiFunction.html" title="interface in org.apache.edgent.function">BiFunction</a>&lt;<a href="http://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;com.google.gson.JsonObject&gt;,K,com.google.gson.JsonObject&gt;&nbsp;mvAggregateList(<a href="http://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;resultPartitionKeyProperty,
                                                                                                                                                 <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;resultProperty,
                                                                                                                                                 <a href="http://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;org.apache.commons.math3.util.Pair&lt;<a href="http://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,<a href="../../../../../../org/apache/edgent/analytics/math3/json/JsonUnivariateAggregate.html" title="interface in org.apache.edgent.analytics.math3.json">JsonUnivariateAggregate</a>[]&gt;&gt;&nbsp;aggregateSpecs)</pre>
 <div class="block">Create a Function that aggregates multiple <code>Numeric</code>
  variables contained in an JSON object.
  <P>
  This is a multi-variable analog of <a href="../../../../../../org/apache/edgent/analytics/math3/json/JsonAnalytics.html#aggregateList-java.lang.String-java.lang.String-org.apache.edgent.function.ToDoubleFunction-org.apache.edgent.analytics.math3.json.JsonUnivariateAggregate...-"><code>aggregateList()</code></a>
  <P>
  The overall multi-variable aggregation result is a JSON object
  with properties:
  <ul>
  <li><code>resultPartionKeyProperty</code> whose value is the tuple's partition key
  <li><code>resultProperty</code> whose value is a JSON object containing
      a property for each variable aggregation.  The property names
      correspond to the variable names from the <code>aggregateSpecs</code>
      and the values are the aggregation results for the variable.
      The aggregation results for a variable are a JSON object
      having a property for each aggregation name and its value.</li>
  </ul>
  <P>
  For example if the list contains these three tuples (pseudo JSON) for
  partition 3:
  <BR>
  <code>{id=3,tx=2.0,rx=1.0,...}, {id=3,tx=2.6,rx=2.0,...}, {id=3,tx=1.8,rx=3.0,...}</code>
  <BR>
  the resulting aggregation JsonObject returned is:
  <BR>
  <code>{id=3, aggData={tx={MIN=1.8, MAX=2.6}, rx={MEAN=2.0}}}</code>
  <BR>
  for the invocation:
  <BR>
  <code>mvAggregateList("id", "aggData", aggSpecs).apply(list, 3))</code>
  <BR>
  where <code>aggSpecs</code> is:
  <BR>
  <code>aggSpecs.add(mkAggregationSpec("tx", Statistics.MIN, Statistics.MAX));
  aggSpecs.add(mkAggregationSpec("rx", Statistics.MEAN));
  </code>
  </P>
  <P>
  <a href="../../../../../../org/apache/edgent/analytics/math3/json/JsonAnalytics.html#getMvAggregate-com.google.gson.JsonObject-java.lang.String-java.lang.String-org.apache.edgent.analytics.math3.json.JsonUnivariateAggregate-"><code>getMvAggregate()</code></a>
  can be used to extract individual aggregate values from the result.
  </P></div>
 <dl>
 <dt><span class="paramLabel">Type Parameters:</span></dt>
 <dd><code>K</code> - Partition Key as a JsonElement</dd>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>resultPartitionKeyProperty</code> - name of the partition key property in the result</dd>
 <dd><code>resultProperty</code> - name of the aggregation results property in the result</dd>
 <dd><code>aggregateSpecs</code> - see <a href="../../../../../../org/apache/edgent/analytics/math3/json/JsonAnalytics.html#mkAggregationSpec-java.lang.String-org.apache.edgent.analytics.math3.json.JsonUnivariateAggregate...-"><code>mkAggregationSpec()</code></a></dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>Function that performs the aggregations.</dd>
 <dt><span class="seeLabel">See Also:</span></dt>
 <dd><a href="../../../../../../org/apache/edgent/analytics/math3/json/JsonAnalytics.html#mkAggregationSpec-java.lang.String-org.apache.edgent.analytics.math3.json.JsonUnivariateAggregate...-"><code>mkAggregationSpec()</code></a>,
 <a href="../../../../../../org/apache/edgent/analytics/math3/json/JsonAnalytics.html#getMvAggregate-com.google.gson.JsonObject-java.lang.String-java.lang.String-org.apache.edgent.analytics.math3.json.JsonUnivariateAggregate-"><code>getMvAggregate()</code></a></dd>
 </dl>
 </li>
 </ul>
 <a name="getMvAggregate-com.google.gson.JsonObject-java.lang.String-java.lang.String-org.apache.edgent.analytics.math3.json.JsonUnivariateAggregate-">
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 <pre>public static&nbsp;com.google.gson.JsonElement&nbsp;getMvAggregate(com.google.gson.JsonObject&nbsp;jo,
                                                          <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;resultProperty,
                                                          <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;variableName,
                                                          <a href="../../../../../../org/apache/edgent/analytics/math3/json/JsonUnivariateAggregate.html" title="interface in org.apache.edgent.analytics.math3.json">JsonUnivariateAggregate</a>&nbsp;aggregate)</pre>
 <div class="block">Get the value of an aggregate computed by a multi-variable aggregation.
  <P>
  This convenience method can be used to extract information from a JSON object
  created by <a href="../../../../../../org/apache/edgent/analytics/math3/json/JsonAnalytics.html#mvAggregateList-java.lang.String-java.lang.String-java.util.List-"><code>mvAggregationList()</code></a>
  or <a href="../../../../../../org/apache/edgent/analytics/math3/json/JsonAnalytics.html#mvAggregate-org.apache.edgent.topology.TWindow-java.lang.String-java.lang.String-java.util.List-"><code>mvAggregate()</code></a>
  </P>
  <P>
  Sample use:
  <pre><code>
  ...
  TStream&lt;JsonObject&gt; aggData = mvAggregate(window, "id", "aggResults", aggSpecs);

  // Create a stream of JsonObject tuples with just the average "tx"
  TStream&lt;JsonObject&gt; avgTx = aggResults.map(
     jo -&gt; {
       JsonObject result = new JsonObject();
       result.add(partitionKeyName, jo.get(partitionKeyName))
       result.add("avgTx", getMvAggregate(jo, "aggResults", "tx", Statistic.MEAN);
       return result;
     });
  </code></pre></div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>jo</code> - a JSON object created by <code>mvAggregationList</code></dd>
 <dd><code>resultProperty</code> - the corresponding value passed to <code>mvAggragateList</code></dd>
 <dd><code>variableName</code> - the data variable of interest in the multivariable aggregates</dd>
 <dd><code>aggregate</code> - the variable's aggregate of interest</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>the variable's aggregate's value as a JsonElement</dd>
 <dt><span class="throwsLabel">Throws:</span></dt>
 <dd><code><a href="http://docs.oracle.com/javase/8/docs/api/java/lang/RuntimeException.html?is-external=true" title="class or interface in java.lang">RuntimeException</a></code> - if the aggregate isn't present in the result</dd>
 <dt><span class="seeLabel">See Also:</span></dt>
 <dd><a href="../../../../../../org/apache/edgent/analytics/math3/json/JsonAnalytics.html#hasMvAggregate-com.google.gson.JsonObject-java.lang.String-java.lang.String-org.apache.edgent.analytics.math3.json.JsonUnivariateAggregate-"><code>hasAggregate()</code></a>,
 <a href="../../../../../../org/apache/edgent/analytics/math3/json/JsonAnalytics.html#mvAggregate-org.apache.edgent.topology.TWindow-java.lang.String-java.lang.String-java.util.List-"><code>mvAggregate()</code></a>,
 <a href="../../../../../../org/apache/edgent/analytics/math3/json/JsonAnalytics.html#mvAggregateList-java.lang.String-java.lang.String-java.util.List-"><code>mvAggregateList()</code></a></dd>
 </dl>
 </li>
 </ul>
 <a name="hasMvAggregate-com.google.gson.JsonObject-java.lang.String-java.lang.String-org.apache.edgent.analytics.math3.json.JsonUnivariateAggregate-">
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 <h4>hasMvAggregate</h4>
 <pre>public static&nbsp;boolean&nbsp;hasMvAggregate(com.google.gson.JsonObject&nbsp;jo,
                                      <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;resultProperty,
                                      <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;variableName,
                                      <a href="../../../../../../org/apache/edgent/analytics/math3/json/JsonUnivariateAggregate.html" title="interface in org.apache.edgent.analytics.math3.json">JsonUnivariateAggregate</a>&nbsp;aggregate)</pre>
 <div class="block">Check if an aggregation result from a multi-variable aggregation
  is present.</div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>jo</code> - a JSON object created by <code>mvAggregationList</code></dd>
 <dd><code>resultProperty</code> - the corresponding value passed to <code>mvAggragateList</code></dd>
 <dd><code>variableName</code> - the data variable of interest in the multivariable aggregates</dd>
 <dd><code>aggregate</code> - the variable's aggregate of interest</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>true if the specified aggregate is present in the jo, false otherwise.</dd>
 <dt><span class="seeLabel">See Also:</span></dt>
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