dentifier">probability</span><span class="special">);</span> <span class="comment">// Probability threshold alpha.</span>
<span class="special">};</span>

<span class="special">}}</span> <span class="comment">// namespaces</span>
</pre>
<p>
          The class type <code class="computeroutput"><span class="identifier">geometric_distribution</span></code>
          represents a <a href="http://en.wikipedia.org/wiki/geometric_distribution" target="_top">geometric
          distribution</a>: it is used when th