brentworden 2004/11/08 18:26:55
Modified: math/xdocs/userguide distribution.xml index.xml
Log:
added poisson description to user guide.
Revision Changes Path
1.2 +19 -1 jakarta-commons/math/xdocs/userguide/distribution.xml
Index: distribution.xml
===================================================================
RCS file: /home/cvs/jakarta-commons/math/xdocs/userguide/distribution.xml,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -r1.1 -r1.2
--- distribution.xml 26 Apr 2004 20:06:50 -0000 1.1
+++ distribution.xml 9 Nov 2004 02:26:55 -0000 1.2
@@ -60,6 +60,7 @@
<tr><td>Gamma</td><td>createGammaDistribution</td><td><div>Alpha</div><div>Beta</div></td></tr>
<tr><td>Hypergeometric</td><td>createHypogeometricDistribution</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>
</table>
</p>
@@ -87,6 +88,23 @@
domain value can not be returned. Only the "best" domain value.
For Commons-Math, the "best"
domain value is determined by the largest domain value whose
cumulative probability is
less-than or equal to the given probability.
+ </p>
+ </subsection>
+ <subsection name="8.3 User Defined Distributions" href="userdefined">
+ <p>
+ Since there are numerous distributions and Commons-Math only
directly supports a handfull,
+ it may be necessary to extend the distribution framework to satisfy
individual needs. It
+ is recommended that the <code>Distribution</code>,
<code>ContinuousDistribution</code>,
+ <code>DiscreteDistribution</code>, and
<code>IntegerDistribution</code> interfaces serve as
+ base types for any extension. These serve as the basis for all the
distributions directly
+ supported by Commons-Math and using those interfaces for
implementation purposes will
+ insure any extension is compatible with the remainder of
Commons-Math. To aid in
+ implementing a distribution extension, the
<code>AbstractDistribution</code>,
+ <code>AbstractContinuousDistribution</code>, and
<code>AbstractIntegerDistribution</code>
+ provide implementation building blocks and offer a lot of default
distribution
+ functionality. By extending these abstract classes directly, a good
portion of the
+ repetative distribution implementation is already developed and
should same time and effort
+ in developing user defined distributions.
</p>
</subsection>
</section>
1.13 +2 -2 jakarta-commons/math/xdocs/userguide/index.xml
Index: index.xml
===================================================================
RCS file: /home/cvs/jakarta-commons/math/xdocs/userguide/index.xml,v
retrieving revision 1.12
retrieving revision 1.13
diff -u -r1.12 -r1.13
--- index.xml 8 Oct 2004 05:08:21 -0000 1.12
+++ index.xml 9 Nov 2004 02:26:55 -0000 1.13
@@ -43,7 +43,6 @@
<li><a href="stat.html#frequency">1.3 Frequency
distributions</a></li>
<li><a href="stat.html#regression">1.4 Simple
regression</a></li>
<li><a href="stat.html#tests">1.5 Statistical tests</a></li>
- <li><a href="stat.html#distributions">1.6 Distribution
framework</a></li>
</ul></li>
<li><a href="random.html">2. Data Generation</a>
<ul>
@@ -91,6 +90,7 @@
<ul>
<li><a href="distribution.html#overview">8.1
Overview</a></li>
<li><a href="distribution.html#distributions">8.2
Distribution Framework</a></li>
+ <li><a href="distribution.html#userdefined">8.3 User Defined
Distributions</a></li>
</ul></li>
</ul>
</section>
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