Changeset 353 for doc/html/intro.html
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doc/html/intro.html
r323 r353 100 100 Getting results from BM</a></h2> 101 101 As introduced above, the results of parameter estimation are in the form of probability density function conditioned on numerical values. This type of information is represented by class <code>epdf</code>.<p> 102 This class allows such as moment evaluation via methods <code> mean()</code> and <code>variance()</code>, marginalization via method <code>marginal()</code>, and conditioning via method <code>condition()</code>.<p>102 This class allows such as moment evaluation via methods <code><a class="el" href="group__statistics.html#g0d54de7e2151c01c03d2a67728d9348f" title="The mean value.">mean()</a></code> and <code><a class="el" href="group__statistics.html#g9245a3ae0b0ea33e57991d449abd1c9e" title="The variance of the elements in the vector. Normalized with N-1 to be unbiased.">variance()</a></code>, marginalization via method <code>marginal()</code>, and conditioning via method <code>condition()</code>.<p> 103 103 Also, it allows generation of a sample via <code>sample()</code> and evaluation of one value of the posterior parameter likelihood via <code>evallog()</code>. Multivariate versions of these operations are also available by adding suffix <code>_m</code>, i.e. <code>sample_m()</code> and <code>evallog_m()</code>. These methods providen multiple samples and evaluation of likelihood in multiple points respectively.<h2><a class="anchor" name="pc"> 104 104 Classes for probability calculus</a></h2> … … 115 115 In our setup, <img class="formulaInl" alt="$ f(a|b,c) $" src="form_97.png"> is represented by an <code>mpdf</code> while <img class="formulaInl" alt="$ f(b) $" src="form_98.png"> and <img class="formulaInl" alt="$ f(c) $" src="form_99.png"> by two <code>epdfs</code>. We need to distinguish the latter two from each other and to deside in which order they should be added to the mpdf. This distinction is facilitated by the class <code>RV</code> which uniquely identify a random varibale.<p> 116 116 Therefore, each pdf keeps record on which RVs it represents; <code>epdf</code> needs to know only one <code>RV</code> stored in the attribute <code>rv</code>; <code>mpdf</code> needs to keep two <code>RVs</code>, one for variable on which it is defined (<code>rv</code>) and one for variable incondition which is stored in attribute <code>rvc</code>. </div> 117 <hr size="1"><address style="text-align: right;"><small>Generated on T hu Apr 23 21:06:432009 for mixpp by 117 <hr size="1"><address style="text-align: right;"><small>Generated on Tue Jun 2 10:02:14 2009 for mixpp by 118 118 <a href="http://www.doxygen.org/index.html"> 119 119 <img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.5.8 </small></address>