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<document>

  <properties>
    <title>Apache Commons Statistics Distribution</title>
  </properties>

  <body>

    <section name="Apache Commons Statistics: Distribution" href="summary">
      <p>
        Apache Commons Statistics provides a framework and implementations for commonly used
        probability distributions.
      </p>

      <p>
        Continuous univariate distributions are represented by the
        <a href="apidocs/org/apache/commons/statistics/distribution/ContinuousDistribution.html">ContinuousDistribution</a>
        interface.  Discrete distributions implement
        <a href="apidocs/org/apache/commons/statistics/distribution/DiscreteDistribution.html">DiscreteDistribution</a>
        (values must be mapped to integers).
      </p>

      <p>
        Example:
      </p>

<source class="prettyprint">import org.apache.commons.statistics.distribution.TDistribution;

double degreesOfFreedom = 29;
TDistribution t = TDistribution.of(degreesOfFreedom);
double lowerTail = t.cumulativeProbability(-2.656);   // P(T(29) &lt;= -2.656)
double upperTail = t.survivalProbability(2.75);       // P(T(29) &gt; 2.75)
</source>

      <p>
        Browse the <a href="apidocs/index.html">Javadoc</a> for more information.
      </p>
    </section>

  </body>

</document>
