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Posted to commits@commons.apache.org by lu...@apache.org on 2008/09/10 21:53:40 UTC
svn commit: r693957 -
/commons/proper/math/branches/MATH_2_0/src/site/xdoc/userguide/distribution.xml
Author: luc
Date: Wed Sep 10 12:53:40 2008
New Revision: 693957
URL: http://svn.apache.org/viewvc?rev=693957&view=rev
Log:
distribution factory was removed after 1.2 release
Modified:
commons/proper/math/branches/MATH_2_0/src/site/xdoc/userguide/distribution.xml
Modified: commons/proper/math/branches/MATH_2_0/src/site/xdoc/userguide/distribution.xml
URL: http://svn.apache.org/viewvc/commons/proper/math/branches/MATH_2_0/src/site/xdoc/userguide/distribution.xml?rev=693957&r1=693956&r2=693957&view=diff
==============================================================================
--- commons/proper/math/branches/MATH_2_0/src/site/xdoc/userguide/distribution.xml (original)
+++ commons/proper/math/branches/MATH_2_0/src/site/xdoc/userguide/distribution.xml Wed Sep 10 12:53:40 2008
@@ -40,35 +40,6 @@
computation of inverse PDF and inverse CDF values.
</p>
<p>
- In order to use the distribution framework, first a distribution object must
- be created. It is encouraged that all distribution object creation occurs via
- the <code>org.apache.commons.math.distribution.DistributionFactory</code>
- class. <code>DistributionFactory</code> is a simple factory used to create all
- of the distribution objects supported by Commons-Math. The typical usage of
- <code>DistributionFactory</code> to create a distribution object would be:
- </p>
- <source>DistributionFactory factory = DistributionFactory.newInstance();
-BinomialDistribution binomial = factory.createBinomialDistribution(10, .75);</source>
- <p>
- The distributions that can be instantiated via the <code>DistributionFactory</code>
- are detailed below:
- <table>
- <tr><th>Distribution</th><th>Factory Method</th><th>Parameters</th></tr>
- <tr><td>Binomial</td><td>createBinomialDistribution</td><td><div>Number of trials</div><div>Probability of success</div></td></tr>
- <tr><td>Cauchy</td><td>createCauchyDistribution</td><td><div>Median</div><div>Scale</div></td></tr>
- <tr><td>Chi-Squared</td><td>createChiSquaredDistribution</td><td><div>Degrees of freedom</div></td></tr>
- <tr><td>Exponential</td><td>createExponentialDistribution</td><td><div>Mean</div></td></tr>
- <tr><td>F</td><td>createFDistribution</td><td><div>Numerator degrees of freedom</div><div>Denominator degrees of freedom</div></td></tr>
- <tr><td>Gamma</td><td>createGammaDistribution</td><td><div>Alpha</div><div>Beta</div></td></tr>
- <tr><td>Hypergeometric</td><td>createHypergeometricDistribution</td><td><div>Population size</div><div>Number of successes in population</div><div>Sample size</div></td></tr>
- <tr><td>Normal (Gaussian)</td><td>createNormalDistribution</td><td><div>Mean</div><div>Standard Deviation</div></td></tr>
- <tr><td>Poisson</td><td>createPoissonDistribution</td><td><div>Mean</div></td></tr>
- <tr><td>t</td><td>createTDistribution</td><td><div>Degrees of freedom</div></td></tr>
- <tr><td>Weibull</td><td>createWeibullDistribution</td><td><div>Shape</div><div>Scale</div><div>Location</div></td></tr>
- <tr><td>Pascal</td><td>createPascalDistribution</td><td><div>numberOfSuccesses</div><div>probabilityOfSuccess</div></td></tr>
- </table>
- </p>
- <p>
Using a distribution object, PDF and CDF probabilities are easily computed
using the <code>cumulativeProbability</code> methods. For a distribution <code>X</code>,
and a domain value, <code>x</code>, <code>cumulativeProbability</code> computes