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Viewing changes to src/test/java/org/apache/commons/math/distribution/PoissonDistributionTest.java

  • Committer: Bazaar Package Importer
  • Author(s): Damien Raude-Morvan, Torsten Werner, Damien Raude-Morvan
  • Date: 2011-03-07 21:14:46 UTC
  • mfrom: (1.1.3 upstream)
  • Revision ID: james.westby@ubuntu.com-20110307211446-4zea7og4eeyzhpai
Tags: 2.2-1
http://bugs.debian.org/617209
[ Torsten Werner ]
* Change maintainers into Maintainers.

[ Damien Raude-Morvan ]
* New upstream release (Closes: #617209).
* d/control: Bump Standards-Version to 3.9.1 (no changes needed).
* d/copyright: Refresh years, upgrade to DEP5 r166 and relicence my work
  under Apache-2.0.
* d/ant.properties: Set junit.jar to /usr/share/java/junit4.jar
  to ensure unit tests are launched.
* d/docs: Install upstream RELEASE-NOTES.

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src/test/java/org/apache/commons/math/distribution/PoissonDistributionTest.java
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package org.apache.commons.math.distribution;
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import org.apache.commons.math.MathException;
 
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import org.apache.commons.math.util.FastMath;
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/**
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 * <code>PoissonDistributionTest</code>
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 *
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 * @version $Revision: 924345 $ $Date: 2010-03-17 12:03:56 -0400 (Wed, 17 Mar 2010) $
 
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 * @version $Revision: 1054524 $ $Date: 2011-01-03 05:59:18 +0100 (lun. 03 janv. 2011) $
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 */
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public class PoissonDistributionTest extends IntegerDistributionAbstractTest {
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            double x = mean * 2.0;
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            double dx = x / 10.0;
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            double p = Double.NaN;
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            double sigma = Math.sqrt(mean);
 
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            double sigma = FastMath.sqrt(mean);
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            while (x >= 0) {
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                try {
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                    p = dist.cumulativeProbability(x);
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            mean *= 10.0;
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        }
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    }
 
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    public void testMomonts() {
 
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        final double tol = 1e-9;
 
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        PoissonDistributionImpl dist;
 
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        dist = new PoissonDistributionImpl(1);
 
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        assertEquals(dist.getNumericalVariance(), 1, tol); 
 
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        dist.setMean(11.23);
 
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        assertEquals(dist.getNumericalVariance(), 11.23, tol);
 
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    }
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}