| <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> |
| <!-- NewPage --> |
| <html lang="en"> |
| <head> |
| <!-- Generated by javadoc (1.8.0_352) on Wed Mar 15 17:21:59 GMT 2023 --> |
| <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> |
| <title>SimpleExponentialSmoothing (Apache Hadoop MapReduce App 3.3.5 API)</title> |
| <meta name="date" content="2023-03-15"> |
| <link rel="stylesheet" type="text/css" href="../../../../../../../../stylesheet.css" title="Style"> |
| <script type="text/javascript" src="../../../../../../../../script.js"></script> |
| </head> |
| <body> |
| <script type="text/javascript"><!-- |
| try { |
| if (location.href.indexOf('is-external=true') == -1) { |
| parent.document.title="SimpleExponentialSmoothing (Apache Hadoop MapReduce App 3.3.5 API)"; |
| } |
| } |
| catch(err) { |
| } |
| //--> |
| var methods = {"i0":9,"i1":10,"i2":10,"i3":10,"i4":10,"i5":10,"i6":10,"i7":10,"i8":10,"i9":10,"i10":10,"i11":10}; |
| var tabs = {65535:["t0","All Methods"],1:["t1","Static Methods"],2:["t2","Instance Methods"],8:["t4","Concrete Methods"]}; |
| var altColor = "altColor"; |
| var rowColor = "rowColor"; |
| var tableTab = "tableTab"; |
| var activeTableTab = "activeTableTab"; |
| </script> |
| <noscript> |
| <div>JavaScript is disabled on your browser.</div> |
| </noscript> |
| <!-- ========= START OF TOP NAVBAR ======= --> |
| <div class="topNav"><a name="navbar.top"> |
| <!-- --> |
| </a> |
| <div class="skipNav"><a href="#skip.navbar.top" title="Skip navigation links">Skip navigation links</a></div> |
| <a name="navbar.top.firstrow"> |
| <!-- --> |
| </a> |
| <ul class="navList" title="Navigation"> |
| <li><a href="../../../../../../../../overview-summary.html">Overview</a></li> |
| <li><a href="package-summary.html">Package</a></li> |
| <li class="navBarCell1Rev">Class</li> |
| <li><a href="class-use/SimpleExponentialSmoothing.html">Use</a></li> |
| <li><a href="package-tree.html">Tree</a></li> |
| <li><a href="../../../../../../../../deprecated-list.html">Deprecated</a></li> |
| <li><a href="../../../../../../../../index-all.html">Index</a></li> |
| <li><a href="../../../../../../../../help-doc.html">Help</a></li> |
| </ul> |
| </div> |
| <div class="subNav"> |
| <ul class="navList"> |
| <li>Prev Class</li> |
| <li>Next Class</li> |
| </ul> |
| <ul class="navList"> |
| <li><a href="../../../../../../../../index.html?org/apache/hadoop/mapreduce/v2/app/speculate/forecast/SimpleExponentialSmoothing.html" target="_top">Frames</a></li> |
| <li><a href="SimpleExponentialSmoothing.html" target="_top">No Frames</a></li> |
| </ul> |
| <ul class="navList" id="allclasses_navbar_top"> |
| <li><a href="../../../../../../../../allclasses-noframe.html">All Classes</a></li> |
| </ul> |
| <div> |
| <script type="text/javascript"><!-- |
| allClassesLink = document.getElementById("allclasses_navbar_top"); |
| if(window==top) { |
| allClassesLink.style.display = "block"; |
| } |
| else { |
| allClassesLink.style.display = "none"; |
| } |
| //--> |
| </script> |
| </div> |
| <div> |
| <ul class="subNavList"> |
| <li>Summary: </li> |
| <li>Nested | </li> |
| <li>Field | </li> |
| <li>Constr | </li> |
| <li><a href="#method.summary">Method</a></li> |
| </ul> |
| <ul class="subNavList"> |
| <li>Detail: </li> |
| <li>Field | </li> |
| <li>Constr | </li> |
| <li><a href="#method.detail">Method</a></li> |
| </ul> |
| </div> |
| <a name="skip.navbar.top"> |
| <!-- --> |
| </a></div> |
| <!-- ========= END OF TOP NAVBAR ========= --> |
| <!-- ======== START OF CLASS DATA ======== --> |
| <div class="header"> |
| <div class="subTitle">org.apache.hadoop.mapreduce.v2.app.speculate.forecast</div> |
| <h2 title="Class SimpleExponentialSmoothing" class="title">Class SimpleExponentialSmoothing</h2> |
| </div> |
| <div class="contentContainer"> |
| <ul class="inheritance"> |
| <li><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">java.lang.Object</a></li> |
| <li> |
| <ul class="inheritance"> |
| <li>org.apache.hadoop.mapreduce.v2.app.speculate.forecast.SimpleExponentialSmoothing</li> |
| </ul> |
| </li> |
| </ul> |
| <div class="description"> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <hr> |
| <br> |
| <pre>public class <span class="typeNameLabel">SimpleExponentialSmoothing</span> |
| extends <a href="https://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">Implementation of the static model for Simple exponential smoothing.</div> |
| </li> |
| </ul> |
| </div> |
| <div class="summary"> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <!-- ========== METHOD SUMMARY =========== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="method.summary"> |
| <!-- --> |
| </a> |
| <h3>Method Summary</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Method Summary table, listing methods, and an explanation"> |
| <caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd"> </span></span><span id="t1" class="tableTab"><span><a href="javascript:show(1);">Static Methods</a></span><span class="tabEnd"> </span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd"> </span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd"> </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 <a href="../../../../../../../../org/apache/hadoop/mapreduce/v2/app/speculate/forecast/SimpleExponentialSmoothing.html" title="class in org.apache.hadoop.mapreduce.v2.app.speculate.forecast">SimpleExponentialSmoothing</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/hadoop/mapreduce/v2/app/speculate/forecast/SimpleExponentialSmoothing.html#createForecast-long-int-long-long-">createForecast</a></span>(long timeConstant, |
| int skipCnt, |
| long stagnatedWindow, |
| long timeStamp)</code> </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>double</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/hadoop/mapreduce/v2/app/speculate/forecast/SimpleExponentialSmoothing.html#getForecast--">getForecast</a></span>()</code> </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/atomic/AtomicReference.html?is-external=true" title="class or interface in java.util.concurrent.atomic">AtomicReference</a><org.apache.hadoop.mapreduce.v2.app.speculate.forecast.SimpleExponentialSmoothing.ForecastRecord></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/hadoop/mapreduce/v2/app/speculate/forecast/SimpleExponentialSmoothing.html#getForecastRefEntry--">getForecastRefEntry</a></span>()</code> </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>double</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/hadoop/mapreduce/v2/app/speculate/forecast/SimpleExponentialSmoothing.html#getRawData--">getRawData</a></span>()</code> </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>double</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/hadoop/mapreduce/v2/app/speculate/forecast/SimpleExponentialSmoothing.html#getSSE--">getSSE</a></span>()</code> </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code>long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/hadoop/mapreduce/v2/app/speculate/forecast/SimpleExponentialSmoothing.html#getStartTime--">getStartTime</a></span>()</code> </td> |
| </tr> |
| <tr id="i6" class="altColor"> |
| <td class="colFirst"><code>long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/hadoop/mapreduce/v2/app/speculate/forecast/SimpleExponentialSmoothing.html#getTimeStamp--">getTimeStamp</a></span>()</code> </td> |
| </tr> |
| <tr id="i7" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/hadoop/mapreduce/v2/app/speculate/forecast/SimpleExponentialSmoothing.html#incorporateReading-long-double-">incorporateReading</a></span>(long timeStamp, |
| double currRawData)</code> </td> |
| </tr> |
| <tr id="i8" class="altColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/hadoop/mapreduce/v2/app/speculate/forecast/SimpleExponentialSmoothing.html#isDataStagnated-long-">isDataStagnated</a></span>(long timeStamp)</code> |
| <div class="block">checks if the task is hanging up.</div> |
| </td> |
| </tr> |
| <tr id="i9" class="rowColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/hadoop/mapreduce/v2/app/speculate/forecast/SimpleExponentialSmoothing.html#isDefaultForecast-double-">isDefaultForecast</a></span>(double value)</code> </td> |
| </tr> |
| <tr id="i10" class="altColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/hadoop/mapreduce/v2/app/speculate/forecast/SimpleExponentialSmoothing.html#isErrorWithinBound-double-">isErrorWithinBound</a></span>(double bound)</code> </td> |
| </tr> |
| <tr id="i11" class="rowColor"> |
| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/hadoop/mapreduce/v2/app/speculate/forecast/SimpleExponentialSmoothing.html#toString--">toString</a></span>()</code> </td> |
| </tr> |
| </table> |
| <ul class="blockList"> |
| <li class="blockList"><a name="methods.inherited.from.class.java.lang.Object"> |
| <!-- --> |
| </a> |
| <h3>Methods inherited from class java.lang.<a href="https://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="https://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="https://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="https://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="https://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="https://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="https://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="https://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="https://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="https://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="https://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> |
| </ul> |
| </li> |
| </ul> |
| </div> |
| <div class="details"> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <!-- ============ METHOD DETAIL ========== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="method.detail"> |
| <!-- --> |
| </a> |
| <h3>Method Detail</h3> |
| <a name="createForecast-long-int-long-long-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>createForecast</h4> |
| <pre>public static <a href="../../../../../../../../org/apache/hadoop/mapreduce/v2/app/speculate/forecast/SimpleExponentialSmoothing.html" title="class in org.apache.hadoop.mapreduce.v2.app.speculate.forecast">SimpleExponentialSmoothing</a> createForecast(long timeConstant, |
| int skipCnt, |
| long stagnatedWindow, |
| long timeStamp)</pre> |
| </li> |
| </ul> |
| <a name="isDataStagnated-long-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>isDataStagnated</h4> |
| <pre>public boolean isDataStagnated(long timeStamp)</pre> |
| <div class="block">checks if the task is hanging up.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>timeStamp</code> - current time of the scan.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>true if we have number of samples > kMinimumReads and the |
| record timestamp has expired.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="incorporateReading-long-double-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>incorporateReading</h4> |
| <pre>public void incorporateReading(long timeStamp, |
| double currRawData)</pre> |
| </li> |
| </ul> |
| <a name="getForecast--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getForecast</h4> |
| <pre>public double getForecast()</pre> |
| </li> |
| </ul> |
| <a name="isDefaultForecast-double-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>isDefaultForecast</h4> |
| <pre>public boolean isDefaultForecast(double value)</pre> |
| </li> |
| </ul> |
| <a name="getSSE--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getSSE</h4> |
| <pre>public double getSSE()</pre> |
| </li> |
| </ul> |
| <a name="isErrorWithinBound-double-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>isErrorWithinBound</h4> |
| <pre>public boolean isErrorWithinBound(double bound)</pre> |
| </li> |
| </ul> |
| <a name="getRawData--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getRawData</h4> |
| <pre>public double getRawData()</pre> |
| </li> |
| </ul> |
| <a name="getTimeStamp--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getTimeStamp</h4> |
| <pre>public long getTimeStamp()</pre> |
| </li> |
| </ul> |
| <a name="getStartTime--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getStartTime</h4> |
| <pre>public long getStartTime()</pre> |
| </li> |
| </ul> |
| <a name="getForecastRefEntry--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getForecastRefEntry</h4> |
| <pre>public <a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/atomic/AtomicReference.html?is-external=true" title="class or interface in java.util.concurrent.atomic">AtomicReference</a><org.apache.hadoop.mapreduce.v2.app.speculate.forecast.SimpleExponentialSmoothing.ForecastRecord> getForecastRefEntry()</pre> |
| </li> |
| </ul> |
| <a name="toString--"> |
| <!-- --> |
| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>toString</h4> |
| <pre>public <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> toString()</pre> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#toString--" title="class or interface in java.lang">toString</a></code> in class <code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </div> |
| </div> |
| <!-- ========= END OF CLASS DATA ========= --> |
| <!-- ======= START OF BOTTOM NAVBAR ====== --> |
| <div class="bottomNav"><a name="navbar.bottom"> |
| <!-- --> |
| </a> |
| <div class="skipNav"><a href="#skip.navbar.bottom" title="Skip navigation links">Skip navigation links</a></div> |
| <a name="navbar.bottom.firstrow"> |
| <!-- --> |
| </a> |
| <ul class="navList" title="Navigation"> |
| <li><a href="../../../../../../../../overview-summary.html">Overview</a></li> |
| <li><a href="package-summary.html">Package</a></li> |
| <li class="navBarCell1Rev">Class</li> |
| <li><a href="class-use/SimpleExponentialSmoothing.html">Use</a></li> |
| <li><a href="package-tree.html">Tree</a></li> |
| <li><a href="../../../../../../../../deprecated-list.html">Deprecated</a></li> |
| <li><a href="../../../../../../../../index-all.html">Index</a></li> |
| <li><a href="../../../../../../../../help-doc.html">Help</a></li> |
| </ul> |
| </div> |
| <div class="subNav"> |
| <ul class="navList"> |
| <li>Prev Class</li> |
| <li>Next Class</li> |
| </ul> |
| <ul class="navList"> |
| <li><a href="../../../../../../../../index.html?org/apache/hadoop/mapreduce/v2/app/speculate/forecast/SimpleExponentialSmoothing.html" target="_top">Frames</a></li> |
| <li><a href="SimpleExponentialSmoothing.html" target="_top">No Frames</a></li> |
| </ul> |
| <ul class="navList" id="allclasses_navbar_bottom"> |
| <li><a href="../../../../../../../../allclasses-noframe.html">All Classes</a></li> |
| </ul> |
| <div> |
| <script type="text/javascript"><!-- |
| allClassesLink = document.getElementById("allclasses_navbar_bottom"); |
| if(window==top) { |
| allClassesLink.style.display = "block"; |
| } |
| else { |
| allClassesLink.style.display = "none"; |
| } |
| //--> |
| </script> |
| </div> |
| <div> |
| <ul class="subNavList"> |
| <li>Summary: </li> |
| <li>Nested | </li> |
| <li>Field | </li> |
| <li>Constr | </li> |
| <li><a href="#method.summary">Method</a></li> |
| </ul> |
| <ul class="subNavList"> |
| <li>Detail: </li> |
| <li>Field | </li> |
| <li>Constr | </li> |
| <li><a href="#method.detail">Method</a></li> |
| </ul> |
| </div> |
| <a name="skip.navbar.bottom"> |
| <!-- --> |
| </a></div> |
| <!-- ======== END OF BOTTOM NAVBAR ======= --> |
| <p class="legalCopy"><small>Copyright © 2008–2023 <a href="https://www.apache.org">Apache Software Foundation</a>. All rights reserved.</small></p> |
| </body> |
| </html> |