<h2>org.das2.qds.math.PoissonDistribution</h2><p>PoissonDistribution generates numbers from the Poisson distribution.
 Adapted from stocc.cpp. 
 2018-08-28.  Made thread safe, use in Jython scripts will be broken.</p>
<h2>PoissonDistribution( )</h2>
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<a name="poisson"></a>
<h2>poisson</h2>
poisson( double L, <a href='https://docs.oracle.com/javase/8/docs/api/java/util/Random.html'>java.util.Random</a> random ) &rarr; int

<p>This function generates a random variate with the Poisson distribution.

 Uses inversion by chop-down method for L &lt; 17, and ratio-of-uniforms
 method for L &gt;= 17.

 For L &lt; 1.E-6 numerical inaccuracy is avoided by direct calculation.
 For L &gt; 2E9 too big--throws IllegalArgumentException
 
 Note this was a static method before 2018-08-28 (v2018a_8), so Jython calls
 should be PoissonDistribution().poisson().</p>

<h3>Parameters</h3>
L - the real value
<br>
random - a random number source

<h3>Returns:</h3>
the integer value.
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<a href="https://github.com/autoplot/dev/search?q=poisson&unscoped_q=poisson">[search for examples]</a>
 <a href="https://github.com/autoplot/documentation/tree/master/javadoc/org/das2/qds/math/PoissonDistribution.md">[view on GitHub]</a>
 <a href="http://www-pw.physics.uiowa.edu/~jbf/autoplot/javadoc2018/org/das2/qds/math/PoissonDistribution.html#poisson">[view on old javadoc]</a>
 <a href="https://sourceforge.net/p/autoplot/code/HEAD/tree/autoplot/trunk/QDataSet/src/org/das2/qds/math/PoissonDistribution.java#l176">[view source]</a>
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