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<div class="sub-title"><span class="package-label-in-type">Package</span>&nbsp;<a href="package-summary.html">org.apache.storm.loadgen</a></div>
<h1 title="Class NormalDistStats" class="title">Class NormalDistStats</h1>
</div>
<div class="inheritance" title="Inheritance Tree"><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">java.lang.Object</a>
<div class="inheritance">org.apache.storm.loadgen.NormalDistStats</div>
</div>
<section class="class-description" id="class-description">
<dl class="notes">
<dt>All Implemented Interfaces:</dt>
<dd><code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/io/Serializable.html" title="class or interface in java.io" class="external-link">Serializable</a></code></dd>
</dl>
<hr>
<div class="type-signature"><span class="modifiers">public class </span><span class="element-name type-name-label">NormalDistStats</span>
<span class="extends-implements">extends <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a>
implements <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/io/Serializable.html" title="class or interface in java.io" class="external-link">Serializable</a></span></div>
<div class="block">Stats related to something with a normal distribution, and a way to randomly simulate it.</div>
<dl class="notes">
<dt>See Also:</dt>
<dd>
<ul class="see-list">
<li><a href="../../../../serialized-form.html#org.apache.storm.loadgen.NormalDistStats">Serialized Form</a></li>
</ul>
</dd>
</dl>
</section>
<section class="summary">
<ul class="summary-list">
<!-- =========== FIELD SUMMARY =========== -->
<li>
<section class="field-summary" id="field-summary">
<h2>Field Summary</h2>
<div class="caption"><span>Fields</span></div>
<div class="summary-table three-column-summary">
<div class="table-header col-first">Modifier and Type</div>
<div class="table-header col-second">Field</div>
<div class="table-header col-last">Description</div>
<div class="col-first even-row-color"><code>final double</code></div>
<div class="col-second even-row-color"><code><a href="#max" class="member-name-link">max</a></code></div>
<div class="col-last even-row-color">&nbsp;</div>
<div class="col-first odd-row-color"><code>final double</code></div>
<div class="col-second odd-row-color"><code><a href="#mean" class="member-name-link">mean</a></code></div>
<div class="col-last odd-row-color">&nbsp;</div>
<div class="col-first even-row-color"><code>final double</code></div>
<div class="col-second even-row-color"><code><a href="#min" class="member-name-link">min</a></code></div>
<div class="col-last even-row-color">&nbsp;</div>
<div class="col-first odd-row-color"><code>final double</code></div>
<div class="col-second odd-row-color"><code><a href="#stddev" class="member-name-link">stddev</a></code></div>
<div class="col-last odd-row-color">&nbsp;</div>
</div>
</section>
</li>
<!-- ======== CONSTRUCTOR SUMMARY ======== -->
<li>
<section class="constructor-summary" id="constructor-summary">
<h2>Constructor Summary</h2>
<div class="caption"><span>Constructors</span></div>
<div class="summary-table two-column-summary">
<div class="table-header col-first">Constructor</div>
<div class="table-header col-last">Description</div>
<div class="col-constructor-name even-row-color"><code><a href="#%3Cinit%3E(double,double,double,double)" class="member-name-link">NormalDistStats</a><wbr>(double&nbsp;mean,
double&nbsp;stddev,
double&nbsp;min,
double&nbsp;max)</code></div>
<div class="col-last even-row-color">
<div class="block">A Constructor for the pre computed stats.</div>
</div>
<div class="col-constructor-name odd-row-color"><code><a href="#%3Cinit%3E(java.util.List)" class="member-name-link">NormalDistStats</a><wbr>(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/List.html" title="class or interface in java.util" class="external-link">List</a>&lt;<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Double.html" title="class or interface in java.lang" class="external-link">Double</a>&gt;&nbsp;values)</code></div>
<div class="col-last odd-row-color">
<div class="block">Create an instance of this from a list of values.</div>
</div>
</div>
</section>
</li>
<!-- ========== METHOD SUMMARY =========== -->
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<section class="method-summary" id="method-summary">
<h2>Method Summary</h2>
<div id="method-summary-table">
<div class="table-tabs" role="tablist" aria-orientation="horizontal"><button id="method-summary-table-tab0" role="tab" aria-selected="true" aria-controls="method-summary-table.tabpanel" tabindex="0" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table', 3)" class="active-table-tab">All Methods</button><button id="method-summary-table-tab1" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab1', 3)" class="table-tab">Static Methods</button><button id="method-summary-table-tab2" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab2', 3)" class="table-tab">Instance Methods</button><button id="method-summary-table-tab4" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab4', 3)" class="table-tab">Concrete Methods</button></div>
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<div class="table-header col-first">Modifier and Type</div>
<div class="table-header col-second">Method</div>
<div class="table-header col-last">Description</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static <a href="NormalDistStats.html" title="class in org.apache.storm.loadgen">NormalDistStats</a></code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#fromConf(java.util.Map)" class="member-name-link">fromConf</a><wbr>(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Map.html" title="class or interface in java.util" class="external-link">Map</a>&lt;<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>,<wbr><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a>&gt;&nbsp;conf)</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4">
<div class="block">Read the stats from a config.</div>
</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static <a href="NormalDistStats.html" title="class in org.apache.storm.loadgen">NormalDistStats</a></code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#fromConf(java.util.Map,java.lang.Double)" class="member-name-link">fromConf</a><wbr>(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Map.html" title="class or interface in java.util" class="external-link">Map</a>&lt;<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>,<wbr><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a>&gt;&nbsp;conf,
<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Double.html" title="class or interface in java.lang" class="external-link">Double</a>&nbsp;def)</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4">
<div class="block">Read the stats from a config.</div>
</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>double</code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#nextRandom(java.util.Random)" class="member-name-link">nextRandom</a><wbr>(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Random.html" title="class or interface in java.util" class="external-link">Random</a>&nbsp;rand)</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
<div class="block">Generate a random number that follows the statistical distribution.</div>
</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="NormalDistStats.html" title="class in org.apache.storm.loadgen">NormalDistStats</a></code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#scaleBy(double)" class="member-name-link">scaleBy</a><wbr>(double&nbsp;v)</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
<div class="block">Scale the stats by v.</div>
</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Map.html" title="class or interface in java.util" class="external-link">Map</a>&lt;<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>,<wbr><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a>&gt;</code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#toConf()" class="member-name-link">toConf</a>()</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
<div class="block">Return this as a config.</div>
</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#toString()" class="member-name-link">toString</a>()</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">&nbsp;</div>
</div>
</div>
</div>
<div class="inherited-list">
<h3 id="methods-inherited-from-class-java.lang.Object">Methods inherited from class&nbsp;java.lang.<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a></h3>
<code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#clone()" title="class or interface in java.lang" class="external-link">clone</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#equals(java.lang.Object)" title="class or interface in java.lang" class="external-link">equals</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#finalize()" title="class or interface in java.lang" class="external-link">finalize</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#getClass()" title="class or interface in java.lang" class="external-link">getClass</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#hashCode()" title="class or interface in java.lang" class="external-link">hashCode</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#notify()" title="class or interface in java.lang" class="external-link">notify</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#notifyAll()" title="class or interface in java.lang" class="external-link">notifyAll</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#wait()" title="class or interface in java.lang" class="external-link">wait</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#wait(long)" title="class or interface in java.lang" class="external-link">wait</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#wait(long,int)" title="class or interface in java.lang" class="external-link">wait</a></code></div>
</section>
</li>
</ul>
</section>
<section class="details">
<ul class="details-list">
<!-- ============ FIELD DETAIL =========== -->
<li>
<section class="field-details" id="field-detail">
<h2>Field Details</h2>
<ul class="member-list">
<li>
<section class="detail" id="mean">
<h3>mean</h3>
<div class="member-signature"><span class="modifiers">public final</span>&nbsp;<span class="return-type">double</span>&nbsp;<span class="element-name">mean</span></div>
</section>
</li>
<li>
<section class="detail" id="stddev">
<h3>stddev</h3>
<div class="member-signature"><span class="modifiers">public final</span>&nbsp;<span class="return-type">double</span>&nbsp;<span class="element-name">stddev</span></div>
</section>
</li>
<li>
<section class="detail" id="min">
<h3>min</h3>
<div class="member-signature"><span class="modifiers">public final</span>&nbsp;<span class="return-type">double</span>&nbsp;<span class="element-name">min</span></div>
</section>
</li>
<li>
<section class="detail" id="max">
<h3>max</h3>
<div class="member-signature"><span class="modifiers">public final</span>&nbsp;<span class="return-type">double</span>&nbsp;<span class="element-name">max</span></div>
</section>
</li>
</ul>
</section>
</li>
<!-- ========= CONSTRUCTOR DETAIL ======== -->
<li>
<section class="constructor-details" id="constructor-detail">
<h2>Constructor Details</h2>
<ul class="member-list">
<li>
<section class="detail" id="&lt;init&gt;(java.util.List)">
<h3>NormalDistStats</h3>
<div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="element-name">NormalDistStats</span><wbr><span class="parameters">(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/List.html" title="class or interface in java.util" class="external-link">List</a>&lt;<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Double.html" title="class or interface in java.lang" class="external-link">Double</a>&gt;&nbsp;values)</span></div>
<div class="block">Create an instance of this from a list of values. The metrics will be computed from the values.</div>
<dl class="notes">
<dt>Parameters:</dt>
<dd><code>values</code> - the values to compute metrics from.</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="&lt;init&gt;(double,double,double,double)">
<h3>NormalDistStats</h3>
<div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="element-name">NormalDistStats</span><wbr><span class="parameters">(double&nbsp;mean,
double&nbsp;stddev,
double&nbsp;min,
double&nbsp;max)</span></div>
<div class="block">A Constructor for the pre computed stats.</div>
<dl class="notes">
<dt>Parameters:</dt>
<dd><code>mean</code> - the mean of the values.</dd>
<dd><code>stddev</code> - the standard deviation of the values.</dd>
<dd><code>min</code> - the min of the values.</dd>
<dd><code>max</code> - the max of the values.</dd>
</dl>
</section>
</li>
</ul>
</section>
</li>
<!-- ============ METHOD DETAIL ========== -->
<li>
<section class="method-details" id="method-detail">
<h2>Method Details</h2>
<ul class="member-list">
<li>
<section class="detail" id="fromConf(java.util.Map)">
<h3>fromConf</h3>
<div class="member-signature"><span class="modifiers">public static</span>&nbsp;<span class="return-type"><a href="NormalDistStats.html" title="class in org.apache.storm.loadgen">NormalDistStats</a></span>&nbsp;<span class="element-name">fromConf</span><wbr><span class="parameters">(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Map.html" title="class or interface in java.util" class="external-link">Map</a>&lt;<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>,<wbr><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a>&gt;&nbsp;conf)</span></div>
<div class="block">Read the stats from a config.</div>
<dl class="notes">
<dt>Parameters:</dt>
<dd><code>conf</code> - the config.</dd>
<dt>Returns:</dt>
<dd>the corresponding stats.</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="fromConf(java.util.Map,java.lang.Double)">
<h3>fromConf</h3>
<div class="member-signature"><span class="modifiers">public static</span>&nbsp;<span class="return-type"><a href="NormalDistStats.html" title="class in org.apache.storm.loadgen">NormalDistStats</a></span>&nbsp;<span class="element-name">fromConf</span><wbr><span class="parameters">(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Map.html" title="class or interface in java.util" class="external-link">Map</a>&lt;<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>,<wbr><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a>&gt;&nbsp;conf,
<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Double.html" title="class or interface in java.lang" class="external-link">Double</a>&nbsp;def)</span></div>
<div class="block">Read the stats from a config.</div>
<dl class="notes">
<dt>Parameters:</dt>
<dd><code>conf</code> - the config.</dd>
<dd><code>def</code> - the default mean.</dd>
<dt>Returns:</dt>
<dd>the corresponding stats.</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="toConf()">
<h3>toConf</h3>
<div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type"><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Map.html" title="class or interface in java.util" class="external-link">Map</a>&lt;<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>,<wbr><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a>&gt;</span>&nbsp;<span class="element-name">toConf</span>()</div>
<div class="block">Return this as a config.</div>
<dl class="notes">
<dt>Returns:</dt>
<dd>the config version of this.</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="nextRandom(java.util.Random)">
<h3>nextRandom</h3>
<div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type">double</span>&nbsp;<span class="element-name">nextRandom</span><wbr><span class="parameters">(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Random.html" title="class or interface in java.util" class="external-link">Random</a>&nbsp;rand)</span></div>
<div class="block">Generate a random number that follows the statistical distribution.</div>
<dl class="notes">
<dt>Parameters:</dt>
<dd><code>rand</code> - the random number generator to use</dd>
<dt>Returns:</dt>
<dd>the next number that should follow the statistical distribution.</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="toString()">
<h3>toString</h3>
<div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type"><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></span>&nbsp;<span class="element-name">toString</span>()</div>
<dl class="notes">
<dt>Overrides:</dt>
<dd><code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#toString()" title="class or interface in java.lang" class="external-link">toString</a></code>&nbsp;in class&nbsp;<code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a></code></dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="scaleBy(double)">
<h3>scaleBy</h3>
<div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type"><a href="NormalDistStats.html" title="class in org.apache.storm.loadgen">NormalDistStats</a></span>&nbsp;<span class="element-name">scaleBy</span><wbr><span class="parameters">(double&nbsp;v)</span></div>
<div class="block">Scale the stats by v. This is not scaling everything proportionally. We don't want the stddev to increase
so instead we scale the mean and shift everything up or down by the same amount.</div>
<dl class="notes">
<dt>Parameters:</dt>
<dd><code>v</code> - the amount to scale by 1.0 is nothing 0.5 is half.</dd>
<dt>Returns:</dt>
<dd>a copy of this with the needed adjustments.</dd>
</dl>
</section>
</li>
</ul>
</section>
</li>
</ul>
</section>
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