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| <div class="subTitle">org.apache.storm.loadgen</div> |
| <h2 title="Class NormalDistStats" class="title">Class NormalDistStats</h2> |
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| <li>org.apache.storm.loadgen.NormalDistStats</li> |
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| <pre>public class <span class="typeNameLabel">NormalDistStats</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> |
| implements <a href="https://docs.oracle.com/javase/8/docs/api/java/io/Serializable.html?is-external=true" title="class or interface in java.io">Serializable</a></pre> |
| <div class="block"><p>Stats related to something with a normal distribution, and a way to randomly simulate it.</p></div> |
| <dl> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../serialized-form.html#org.apache.storm.loadgen.NormalDistStats">Serialized Form</a></dd> |
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| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Field and Description</th> |
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| <tr class="altColor"> |
| <td class="colFirst"><code>double</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/loadgen/NormalDistStats.html#max">max</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>double</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/loadgen/NormalDistStats.html#mean">mean</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>double</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/loadgen/NormalDistStats.html#min">min</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>double</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/loadgen/NormalDistStats.html#stddev">stddev</a></span></code> </td> |
| </tr> |
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| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/loadgen/NormalDistStats.html#NormalDistStats-double-double-double-double-">NormalDistStats</a></span>(double mean, |
| double stddev, |
| double min, |
| double max)</code> |
| <div class="block">A Constructor for the pre computed stats.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/loadgen/NormalDistStats.html#NormalDistStats-java.util.List-">NormalDistStats</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Double.html?is-external=true" title="class or interface in java.lang">Double</a>> values)</code> |
| <div class="block">Create an instance of this from a list of values.</div> |
| </td> |
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| <td class="colFirst"><code>static <a href="../../../../org/apache/storm/loadgen/NormalDistStats.html" title="class in org.apache.storm.loadgen">NormalDistStats</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/loadgen/NormalDistStats.html#fromConf-java.util.Map-">fromConf</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a><<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>,<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>> conf)</code> |
| <div class="block">Read the stats from a config.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>static <a href="../../../../org/apache/storm/loadgen/NormalDistStats.html" title="class in org.apache.storm.loadgen">NormalDistStats</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/loadgen/NormalDistStats.html#fromConf-java.util.Map-java.lang.Double-">fromConf</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a><<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>,<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>> conf, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Double.html?is-external=true" title="class or interface in java.lang">Double</a> def)</code> |
| <div class="block">Read the stats from a config.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>double</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/loadgen/NormalDistStats.html#nextRandom-java.util.Random-">nextRandom</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Random.html?is-external=true" title="class or interface in java.util">Random</a> rand)</code> |
| <div class="block">Generate a random number that follows the statistical distribution.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../org/apache/storm/loadgen/NormalDistStats.html" title="class in org.apache.storm.loadgen">NormalDistStats</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/loadgen/NormalDistStats.html#scaleBy-double-">scaleBy</a></span>(double v)</code> |
| <div class="block">Scale the stats by v.</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a><<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>,<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></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/loadgen/NormalDistStats.html#toConf--">toConf</a></span>()</code> |
| <div class="block">Return this as a config.</div> |
| </td> |
| </tr> |
| <tr id="i5" 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/storm/loadgen/NormalDistStats.html#toString--">toString</a></span>()</code> </td> |
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| </ul> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </div> |
| <div class="details"> |
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| <!-- ============ FIELD DETAIL =========== --> |
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| <h3>Field Detail</h3> |
| <a name="mean"> |
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| <h4>mean</h4> |
| <pre>public final double mean</pre> |
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| </ul> |
| <a name="stddev"> |
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| </a> |
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| <h4>stddev</h4> |
| <pre>public final double stddev</pre> |
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| <h4>min</h4> |
| <pre>public final double min</pre> |
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| <h4>max</h4> |
| <pre>public final double max</pre> |
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| </a> |
| <h3>Constructor Detail</h3> |
| <a name="NormalDistStats-java.util.List-"> |
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| </a> |
| <ul class="blockList"> |
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| <h4>NormalDistStats</h4> |
| <pre>public NormalDistStats(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Double.html?is-external=true" title="class or interface in java.lang">Double</a>> values)</pre> |
| <div class="block"><p>Create an instance of this from a list of values. The metrics will be computed from the values.</p></div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>values</code> - the values to compute metrics from.</dd> |
| </dl> |
| </li> |
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| <h4>NormalDistStats</h4> |
| <pre>public NormalDistStats(double mean, |
| double stddev, |
| double min, |
| double max)</pre> |
| <div class="block"><p>A Constructor for the pre computed stats.</p></div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></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> |
| </li> |
| </ul> |
| </li> |
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| <h4>fromConf</h4> |
| <pre>public static <a href="../../../../org/apache/storm/loadgen/NormalDistStats.html" title="class in org.apache.storm.loadgen">NormalDistStats</a> fromConf(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a><<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>,<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>> conf)</pre> |
| <div class="block"><p>Read the stats from a config.</p></div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>conf</code> - the config.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the corresponding stats.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="fromConf-java.util.Map-java.lang.Double-"> |
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| <h4>fromConf</h4> |
| <pre>public static <a href="../../../../org/apache/storm/loadgen/NormalDistStats.html" title="class in org.apache.storm.loadgen">NormalDistStats</a> fromConf(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a><<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>,<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>> conf, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Double.html?is-external=true" title="class or interface in java.lang">Double</a> def)</pre> |
| <div class="block"><p>Read the stats from a config.</p></div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>conf</code> - the config.</dd> |
| <dd><code>def</code> - the default mean.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the corresponding stats.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="toConf--"> |
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| </a> |
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| <h4>toConf</h4> |
| <pre>public <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a><<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>,<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>> toConf()</pre> |
| <div class="block"><p>Return this as a config.</p></div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the config version of this.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="nextRandom-java.util.Random-"> |
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| </a> |
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| <h4>nextRandom</h4> |
| <pre>public double nextRandom(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Random.html?is-external=true" title="class or interface in java.util">Random</a> rand)</pre> |
| <div class="block"><p>Generate a random number that follows the statistical distribution.</p></div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>rand</code> - the random number generator to use</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the next number that should follow the statistical distribution.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="toString--"> |
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| <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> |
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| <pre>public <a href="../../../../org/apache/storm/loadgen/NormalDistStats.html" title="class in org.apache.storm.loadgen">NormalDistStats</a> scaleBy(double v)</pre> |
| <div class="block"><p>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.</p></div> |
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| <dd><code>v</code> - the amount to scale by 1.0 is nothing 0.5 is half.</dd> |
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| <dd>a copy of this with the needed adjustments.</dd> |
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