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| <h2 title="Class AbstractDistribution" class="title">Class AbstractDistribution</h2> |
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| <li> |
| <ul class="inheritance"> |
| <li><a href="../../../../../../org/apache/mahout/math/function/DoubleFunction.html" title="class in org.apache.mahout.math.function">org.apache.mahout.math.function.DoubleFunction</a></li> |
| <li> |
| <ul class="inheritance"> |
| <li>org.apache.mahout.math.jet.random.AbstractDistribution</li> |
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| <dd><a href="../../../../../../org/apache/mahout/math/function/IntFunction.html" title="interface in org.apache.mahout.math.function">IntFunction</a></dd> |
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| <dl> |
| <dt>Direct Known Subclasses:</dt> |
| <dd><a href="../../../../../../org/apache/mahout/math/jet/random/AbstractContinousDistribution.html" title="class in org.apache.mahout.math.jet.random">AbstractContinousDistribution</a>, <a href="../../../../../../org/apache/mahout/math/jet/random/AbstractDiscreteDistribution.html" title="class in org.apache.mahout.math.jet.random">AbstractDiscreteDistribution</a></dd> |
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| <pre>public abstract class <span class="typeNameLabel">AbstractDistribution</span> |
| extends <a href="../../../../../../org/apache/mahout/math/function/DoubleFunction.html" title="class in org.apache.mahout.math.function">DoubleFunction</a> |
| implements <a href="../../../../../../org/apache/mahout/math/function/IntFunction.html" title="interface in org.apache.mahout.math.function">IntFunction</a></pre> |
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| <caption><span>Constructors</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier</th> |
| <th class="colLast" scope="col">Constructor and Description</th> |
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| <tr class="altColor"> |
| <td class="colFirst"><code>protected </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/mahout/math/jet/random/AbstractDistribution.html#AbstractDistribution--">AbstractDistribution</a></span>()</code> |
| <div class="block">Makes this class non instantiable, but still let's others inherit from it.</div> |
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| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Method and Description</th> |
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| <td class="colFirst"><code>double</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/mahout/math/jet/random/AbstractDistribution.html#apply-double-">apply</a></span>(double dummy)</code> |
| <div class="block">Equivalent to <tt>nextDouble()</tt>.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/mahout/math/jet/random/AbstractDistribution.html#apply-int-">apply</a></span>(int dummy)</code> |
| <div class="block">Equivalent to <tt>nextInt()</tt>.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>protected <a href="http://docs.oracle.com/javase/7/docs/api/java/util/Random.html?is-external=true" title="class or interface in java.util">Random</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/mahout/math/jet/random/AbstractDistribution.html#getRandomGenerator--">getRandomGenerator</a></span>()</code> </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>abstract double</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/mahout/math/jet/random/AbstractDistribution.html#nextDouble--">nextDouble</a></span>()</code> |
| <div class="block">Returns a random number from the distribution.</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>abstract int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/mahout/math/jet/random/AbstractDistribution.html#nextInt--">nextInt</a></span>()</code> </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code>protected double</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/mahout/math/jet/random/AbstractDistribution.html#randomDouble--">randomDouble</a></span>()</code> </td> |
| </tr> |
| <tr id="i6" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/mahout/math/jet/random/AbstractDistribution.html#setRandomGenerator-java.util.Random-">setRandomGenerator</a></span>(<a href="http://docs.oracle.com/javase/7/docs/api/java/util/Random.html?is-external=true" title="class or interface in java.util">Random</a> randomGenerator)</code> |
| <div class="block">Sets the uniform random generator internally used.</div> |
| </td> |
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| <h3>Methods inherited from class org.apache.mahout.math.function.<a href="../../../../../../org/apache/mahout/math/function/DoubleFunction.html" title="class in org.apache.mahout.math.function">DoubleFunction</a></h3> |
| <code><a href="../../../../../../org/apache/mahout/math/function/DoubleFunction.html#isDensifying--">isDensifying</a></code></li> |
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| <h3>Constructor Detail</h3> |
| <a name="AbstractDistribution--"> |
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| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>AbstractDistribution</h4> |
| <pre>protected AbstractDistribution()</pre> |
| <div class="block">Makes this class non instantiable, but still let's others inherit from it.</div> |
| </li> |
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| <pre>protected <a href="http://docs.oracle.com/javase/7/docs/api/java/util/Random.html?is-external=true" title="class or interface in java.util">Random</a> getRandomGenerator()</pre> |
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| <h4>randomDouble</h4> |
| <pre>protected double randomDouble()</pre> |
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| <h4>apply</h4> |
| <pre>public double apply(double dummy)</pre> |
| <div class="block">Equivalent to <tt>nextDouble()</tt>. This has the effect that distributions can now be used as function objects, |
| returning a random number upon function evaluation.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../../org/apache/mahout/math/function/DoubleFunction.html#apply-double-">apply</a></code> in class <code><a href="../../../../../../org/apache/mahout/math/function/DoubleFunction.html" title="class in org.apache.mahout.math.function">DoubleFunction</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>dummy</code> - double for the argument</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the result of applying the function</dd> |
| </dl> |
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| <h4>apply</h4> |
| <pre>public int apply(int dummy)</pre> |
| <div class="block">Equivalent to <tt>nextInt()</tt>. This has the effect that distributions can now be used as function objects, |
| returning a random number upon function evaluation.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../../org/apache/mahout/math/function/IntFunction.html#apply-int-">apply</a></code> in interface <code><a href="../../../../../../org/apache/mahout/math/function/IntFunction.html" title="interface in org.apache.mahout.math.function">IntFunction</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>dummy</code> - argument passed to the function.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the result of the function.</dd> |
| </dl> |
| </li> |
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| <h4>nextDouble</h4> |
| <pre>public abstract double nextDouble()</pre> |
| <div class="block">Returns a random number from the distribution.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>A new sample from this distribution.</dd> |
| </dl> |
| </li> |
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| <a name="nextInt--"> |
| <!-- --> |
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| <h4>nextInt</h4> |
| <pre>public abstract int nextInt()</pre> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>A random number from the distribution; returns <tt>(int) Math.round(nextDouble())</tt>. Override this |
| method if necessary.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="setRandomGenerator-java.util.Random-"> |
| <!-- --> |
| </a> |
| <ul class="blockListLast"> |
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| <h4>setRandomGenerator</h4> |
| <pre>public void setRandomGenerator(<a href="http://docs.oracle.com/javase/7/docs/api/java/util/Random.html?is-external=true" title="class or interface in java.util">Random</a> randomGenerator)</pre> |
| <div class="block">Sets the uniform random generator internally used.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>randomGenerator</code> - the new PRNG</dd> |
| </dl> |
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