doc/html/boost/random/negative_bino_idp151942992.html


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<title>Class template negative_binomial_distribution</title>
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<h2><span class="refentrytitle">Class template negative_binomial_distribution</span></h2>
<p>boost::random::negative_binomial_distribution</p>
</div>
<h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2>
<div xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../boost_random/reference.html#header.boost.random.negative_binomial_distribution_hpp" title="Header &lt;boost/random/negative_binomial_distribution.hpp&gt;">boost/random/negative_binomial_distribution.hpp</a>&gt;

</span><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> IntType <span class="special">=</span> <span class="keyword">int</span><span class="special">,</span> <span class="keyword">typename</span> RealType <span class="special">=</span> <span class="keyword">double</span><span class="special">&gt;</span> 
<span class="keyword">class</span> <a class="link" href="negative_bino_idp151942992.html" title="Class template negative_binomial_distribution">negative_binomial_distribution</a> <span class="special">{</span>
<span class="keyword">public</span><span class="special">:</span>
  <span class="comment">// types</span>
  <span class="keyword">typedef</span> <span class="identifier">IntType</span>  <a name="boost.random.negative_bino_idp151942992.result_type"></a><span class="identifier">result_type</span><span class="special">;</span>
  <span class="keyword">typedef</span> <span class="identifier">RealType</span> <a name="boost.random.negative_bino_idp151942992.input_type"></a><span class="identifier">input_type</span><span class="special">;</span> 

  <span class="comment">// member classes/structs/unions</span>

  <span class="keyword">class</span> <a class="link" href="negative_bino_idp151942992/param_type.html" title="Class param_type">param_type</a> <span class="special">{</span>
  <span class="keyword">public</span><span class="special">:</span>
    <span class="comment">// types</span>
    <span class="keyword">typedef</span> <a class="link" href="negative_bino_idp151942992.html" title="Class template negative_binomial_distribution">negative_binomial_distribution</a> <a class="link" href="negative_bino_idp151942992/param_type.html#boost.random.negative_bino_idp151942992.param_type.distribution_type"><span class="identifier">distribution_type</span></a><span class="special">;</span>

    <span class="comment">// <a class="link" href="negative_bino_idp151942992/param_type.html#boost.random.negative_bino_idp151942992.param_typeconstruct-copy-destruct">construct/copy/destruct</a></span>
    <span class="keyword">explicit</span> <a class="link" href="negative_bino_idp151942992/param_type.html#idp196993616-bb"><span class="identifier">param_type</span></a><span class="special">(</span><span class="identifier">IntType</span> <span class="special">=</span> <span class="number">1</span><span class="special">,</span> <span class="identifier">RealType</span> <span class="special">=</span> <span class="number">0</span><span class="special">.</span><span class="number">5</span><span class="special">)</span><span class="special">;</span>

    <span class="comment">// <a class="link" href="negative_bino_idp151942992/param_type.html#idp210621040-bb">public member functions</a></span>
    <span class="identifier">IntType</span> <a class="link" href="negative_bino_idp151942992/param_type.html#idp196997360-bb"><span class="identifier">k</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
    <span class="identifier">RealType</span> <a class="link" href="negative_bino_idp151942992/param_type.html#idp196995840-bb"><span class="identifier">p</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>

    <span class="comment">// <a class="link" href="negative_bino_idp151942992/param_type.html#idp200645680-bb">friend functions</a></span>
    <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> CharT<span class="special">,</span> <span class="keyword">typename</span> Traits<span class="special">&gt;</span> 
      <span class="keyword">friend</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_ostream</span><span class="special">&lt;</span> <span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">Traits</span> <span class="special">&gt;</span> <span class="special">&amp;</span> 
      <a class="link" href="negative_bino_idp151942992/param_type.html#idp200644528-bb"><span class="keyword">operator</span><span class="special">&lt;&lt;</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_ostream</span><span class="special">&lt;</span> <span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">Traits</span> <span class="special">&gt;</span> <span class="special">&amp;</span><span class="special">,</span> <span class="keyword">const</span> <a class="link" href="negative_bino_idp151942992/param_type.html" title="Class param_type">param_type</a> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
    <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> CharT<span class="special">,</span> <span class="keyword">typename</span> Traits<span class="special">&gt;</span> 
      <span class="keyword">friend</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_istream</span><span class="special">&lt;</span> <span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">Traits</span> <span class="special">&gt;</span> <span class="special">&amp;</span> 
      <a class="link" href="negative_bino_idp151942992/param_type.html#idp224046384-bb"><span class="keyword">operator</span><span class="special">&gt;&gt;</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_istream</span><span class="special">&lt;</span> <span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">Traits</span> <span class="special">&gt;</span> <span class="special">&amp;</span><span class="special">,</span> <a class="link" href="negative_bino_idp151942992/param_type.html" title="Class param_type">param_type</a> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
    <span class="keyword">friend</span> <span class="keyword">bool</span> <a class="link" href="negative_bino_idp151942992/param_type.html#idp224040336-bb"><span class="keyword">operator</span><span class="special">==</span></a><span class="special">(</span><span class="keyword">const</span> <a class="link" href="negative_bino_idp151942992/param_type.html" title="Class param_type">param_type</a> <span class="special">&amp;</span><span class="special">,</span> <span class="keyword">const</span> <a class="link" href="negative_bino_idp151942992/param_type.html" title="Class param_type">param_type</a> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
    <span class="keyword">friend</span> <span class="keyword">bool</span> <a class="link" href="negative_bino_idp151942992/param_type.html#idp151912592-bb"><span class="keyword">operator</span><span class="special">!=</span></a><span class="special">(</span><span class="keyword">const</span> <a class="link" href="negative_bino_idp151942992/param_type.html" title="Class param_type">param_type</a> <span class="special">&amp;</span><span class="special">,</span> <span class="keyword">const</span> <a class="link" href="negative_bino_idp151942992/param_type.html" title="Class param_type">param_type</a> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
  <span class="special">}</span><span class="special">;</span>

  <span class="comment">// <a class="link" href="negative_bino_idp151942992.html#boost.random.negative_bino_idp151942992construct-copy-destruct">construct/copy/destruct</a></span>
  <span class="keyword">explicit</span> <a class="link" href="negative_bino_idp151942992.html#idp143205712-bb"><span class="identifier">negative_binomial_distribution</span></a><span class="special">(</span><span class="identifier">IntType</span> <span class="special">=</span> <span class="number">1</span><span class="special">,</span> <span class="identifier">RealType</span> <span class="special">=</span> <span class="number">0</span><span class="special">.</span><span class="number">5</span><span class="special">)</span><span class="special">;</span>
  <span class="keyword">explicit</span> <a class="link" href="negative_bino_idp151942992.html#idp143201216-bb"><span class="identifier">negative_binomial_distribution</span></a><span class="special">(</span><span class="keyword">const</span> <a class="link" href="negative_bino_idp151942992/param_type.html" title="Class param_type">param_type</a> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>

  <span class="comment">// <a class="link" href="negative_bino_idp151942992.html#idp97783040-bb">public member functions</a></span>
  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> URNG<span class="special">&gt;</span> <span class="identifier">IntType</span> <a class="link" href="negative_bino_idp151942992.html#idp97781744-bb"><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span></a><span class="special">(</span><span class="identifier">URNG</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> URNG<span class="special">&gt;</span> <span class="identifier">IntType</span> <a class="link" href="negative_bino_idp151942992.html#idp97779968-bb"><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span></a><span class="special">(</span><span class="identifier">URNG</span> <span class="special">&amp;</span><span class="special">,</span> <span class="keyword">const</span> <a class="link" href="negative_bino_idp151942992/param_type.html" title="Class param_type">param_type</a> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
  <span class="identifier">IntType</span> <a class="link" href="negative_bino_idp151942992.html#idp145648320-bb"><span class="identifier">k</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
  <span class="identifier">RealType</span> <a class="link" href="negative_bino_idp151942992.html#idp145648064-bb"><span class="identifier">p</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
  <span class="identifier">IntType</span> <a class="link" href="negative_bino_idp151942992.html#idp219351632-bb"><span class="identifier">min</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
  <span class="identifier">IntType</span> <a class="link" href="negative_bino_idp151942992.html#idp149859648-bb"><span class="identifier">max</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
  <a class="link" href="negative_bino_idp151942992/param_type.html" title="Class param_type">param_type</a> <a class="link" href="negative_bino_idp151942992.html#idp219347008-bb"><span class="identifier">param</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
  <span class="keyword">void</span> <a class="link" href="negative_bino_idp151942992.html#idp219349056-bb"><span class="identifier">param</span></a><span class="special">(</span><span class="keyword">const</span> <a class="link" href="negative_bino_idp151942992/param_type.html" title="Class param_type">param_type</a> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
  <span class="keyword">void</span> <a class="link" href="negative_bino_idp151942992.html#idp219346512-bb"><span class="identifier">reset</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>

  <span class="comment">// <a class="link" href="negative_bino_idp151942992.html#idp203839264-bb">friend functions</a></span>
  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> CharT<span class="special">,</span> <span class="keyword">typename</span> Traits<span class="special">&gt;</span> 
    <span class="keyword">friend</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_ostream</span><span class="special">&lt;</span> <span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">Traits</span> <span class="special">&gt;</span> <span class="special">&amp;</span> 
    <a class="link" href="negative_bino_idp151942992.html#idp203839104-bb"><span class="keyword">operator</span><span class="special">&lt;&lt;</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_ostream</span><span class="special">&lt;</span> <span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">Traits</span> <span class="special">&gt;</span> <span class="special">&amp;</span><span class="special">,</span> 
               <span class="keyword">const</span> <a class="link" href="negative_bino_idp151942992.html" title="Class template negative_binomial_distribution">negative_binomial_distribution</a> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> CharT<span class="special">,</span> <span class="keyword">typename</span> Traits<span class="special">&gt;</span> 
    <span class="keyword">friend</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_istream</span><span class="special">&lt;</span> <span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">Traits</span> <span class="special">&gt;</span> <span class="special">&amp;</span> 
    <a class="link" href="negative_bino_idp151942992.html#idp214744576-bb"><span class="keyword">operator</span><span class="special">&gt;&gt;</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_istream</span><span class="special">&lt;</span> <span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">Traits</span> <span class="special">&gt;</span> <span class="special">&amp;</span><span class="special">,</span> 
               <a class="link" href="negative_bino_idp151942992.html" title="Class template negative_binomial_distribution">negative_binomial_distribution</a> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
  <span class="keyword">friend</span> <span class="keyword">bool</span> <a class="link" href="negative_bino_idp151942992.html#idp214738992-bb"><span class="keyword">operator</span><span class="special">==</span></a><span class="special">(</span><span class="keyword">const</span> <a class="link" href="negative_bino_idp151942992.html" title="Class template negative_binomial_distribution">negative_binomial_distribution</a> <span class="special">&amp;</span><span class="special">,</span> 
                         <span class="keyword">const</span> <a class="link" href="negative_bino_idp151942992.html" title="Class template negative_binomial_distribution">negative_binomial_distribution</a> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
  <span class="keyword">friend</span> <span class="keyword">bool</span> <a class="link" href="negative_bino_idp151942992.html#idp84858096-bb"><span class="keyword">operator</span><span class="special">!=</span></a><span class="special">(</span><span class="keyword">const</span> <a class="link" href="negative_bino_idp151942992.html" title="Class template negative_binomial_distribution">negative_binomial_distribution</a> <span class="special">&amp;</span><span class="special">,</span> 
                         <span class="keyword">const</span> <a class="link" href="negative_bino_idp151942992.html" title="Class template negative_binomial_distribution">negative_binomial_distribution</a> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
<span class="special">}</span><span class="special">;</span></pre></div>
<div class="refsect1">
<a name="idp401634992"></a><h2>Description</h2>
<p>The negative binomial distribution is an integer valued distribution with two parameters, <code class="computeroutput">k</code> and <code class="computeroutput">p</code>. The distribution produces non-negative values.</p>
<p>The distribution function is <span class="inlinemediaobject"><img src="../../images/random//form_17.png"></span>.</p>
<p>This implementation uses a gamma-poisson mixture. </p>
<div class="refsect2">
<a name="idp401640256"></a><h3>
<a name="boost.random.negative_bino_idp151942992construct-copy-destruct"></a><code class="computeroutput">negative_binomial_distribution</code> 
        public
       construct/copy/destruct</h3>
<div class="orderedlist"><ol class="orderedlist" type="1">
<li class="listitem">
<pre class="literallayout"><span class="keyword">explicit</span> <a name="idp143205712-bb"></a><span class="identifier">negative_binomial_distribution</span><span class="special">(</span><span class="identifier">IntType</span> k <span class="special">=</span> <span class="number">1</span><span class="special">,</span> <span class="identifier">RealType</span> p <span class="special">=</span> <span class="number">0</span><span class="special">.</span><span class="number">5</span><span class="special">)</span><span class="special">;</span></pre>
<p>Construct a <code class="computeroutput"><code class="computeroutput"><a class="link" href="negative_bino_idp151942992.html" title="Class template negative_binomial_distribution">negative_binomial_distribution</a></code></code> object. <code class="computeroutput">k</code> and <code class="computeroutput">p</code> are the parameters of the distribution.</p>
<p>Requires: k &gt;=0 &amp;&amp; 0 &lt;= p &lt;= 1 </p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="keyword">explicit</span> <a name="idp143201216-bb"></a><span class="identifier">negative_binomial_distribution</span><span class="special">(</span><span class="keyword">const</span> <a class="link" href="negative_bino_idp151942992/param_type.html" title="Class param_type">param_type</a> <span class="special">&amp;</span> param<span class="special">)</span><span class="special">;</span></pre>
<p>Construct an <code class="computeroutput"><code class="computeroutput"><a class="link" href="negative_bino_idp151942992.html" title="Class template negative_binomial_distribution">negative_binomial_distribution</a></code></code> object from the parameters. </p>
</li>
</ol></div>
</div>
<div class="refsect2">
<a name="idp401664896"></a><h3>
<a name="idp97783040-bb"></a><code class="computeroutput">negative_binomial_distribution</code> public member functions</h3>
<div class="orderedlist"><ol class="orderedlist" type="1">
<li class="listitem">
<pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> URNG<span class="special">&gt;</span> <span class="identifier">IntType</span> <a name="idp97781744-bb"></a><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span><span class="special">(</span><span class="identifier">URNG</span> <span class="special">&amp;</span> urng<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
<p>Returns a random variate distributed according to the negative binomial distribution. </p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> URNG<span class="special">&gt;</span> 
  <span class="identifier">IntType</span> <a name="idp97779968-bb"></a><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span><span class="special">(</span><span class="identifier">URNG</span> <span class="special">&amp;</span> urng<span class="special">,</span> <span class="keyword">const</span> <a class="link" href="negative_bino_idp151942992/param_type.html" title="Class param_type">param_type</a> <span class="special">&amp;</span> param<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
<p>Returns a random variate distributed according to the negative binomial distribution with parameters specified by <code class="computeroutput">param</code>. </p>
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<li class="listitem">
<pre class="literallayout"><span class="identifier">IntType</span> <a name="idp145648320-bb"></a><span class="identifier">k</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
<p>Returns the <code class="computeroutput">k</code> parameter of the distribution. </p>
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<li class="listitem">
<pre class="literallayout"><span class="identifier">RealType</span> <a name="idp145648064-bb"></a><span class="identifier">p</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
<p>Returns the <code class="computeroutput">p</code> parameter of the distribution. </p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="identifier">IntType</span> <a name="idp219351632-bb"></a><span class="identifier">min</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
<p>Returns the smallest value that the distribution can produce. </p>
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<li class="listitem">
<pre class="literallayout"><span class="identifier">IntType</span> <a name="idp149859648-bb"></a><span class="identifier">max</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
<p>Returns the largest value that the distribution can produce. </p>
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<li class="listitem">
<pre class="literallayout"><a class="link" href="negative_bino_idp151942992/param_type.html" title="Class param_type">param_type</a> <a name="idp219347008-bb"></a><span class="identifier">param</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
<p>Returns the parameters of the distribution. </p>
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<li class="listitem">
<pre class="literallayout"><span class="keyword">void</span> <a name="idp219349056-bb"></a><span class="identifier">param</span><span class="special">(</span><span class="keyword">const</span> <a class="link" href="negative_bino_idp151942992/param_type.html" title="Class param_type">param_type</a> <span class="special">&amp;</span> param<span class="special">)</span><span class="special">;</span></pre>
<p>Sets parameters of the distribution. </p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="keyword">void</span> <a name="idp219346512-bb"></a><span class="identifier">reset</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre>
<p>Effects: Subsequent uses of the distribution do not depend on values produced by any engine prior to invoking reset. </p>
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</ol></div>
</div>
<div class="refsect2">
<a name="idp401730832"></a><h3>
<a name="idp203839264-bb"></a><code class="computeroutput">negative_binomial_distribution</code> friend functions</h3>
<div class="orderedlist"><ol class="orderedlist" type="1">
<li class="listitem">
<pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> CharT<span class="special">,</span> <span class="keyword">typename</span> Traits<span class="special">&gt;</span> 
  <span class="keyword">friend</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_ostream</span><span class="special">&lt;</span> <span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">Traits</span> <span class="special">&gt;</span> <span class="special">&amp;</span> 
  <a name="idp203839104-bb"></a><span class="keyword">operator</span><span class="special">&lt;&lt;</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_ostream</span><span class="special">&lt;</span> <span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">Traits</span> <span class="special">&gt;</span> <span class="special">&amp;</span> os<span class="special">,</span> 
             <span class="keyword">const</span> <a class="link" href="negative_bino_idp151942992.html" title="Class template negative_binomial_distribution">negative_binomial_distribution</a> <span class="special">&amp;</span> bd<span class="special">)</span><span class="special">;</span></pre>
<p>Writes the parameters of the distribution to a <code class="computeroutput">std::ostream</code>. </p>
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<li class="listitem">
<pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> CharT<span class="special">,</span> <span class="keyword">typename</span> Traits<span class="special">&gt;</span> 
  <span class="keyword">friend</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_istream</span><span class="special">&lt;</span> <span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">Traits</span> <span class="special">&gt;</span> <span class="special">&amp;</span> 
  <a name="idp214744576-bb"></a><span class="keyword">operator</span><span class="special">&gt;&gt;</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_istream</span><span class="special">&lt;</span> <span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">Traits</span> <span class="special">&gt;</span> <span class="special">&amp;</span> is<span class="special">,</span> 
             <a class="link" href="negative_bino_idp151942992.html" title="Class template negative_binomial_distribution">negative_binomial_distribution</a> <span class="special">&amp;</span> bd<span class="special">)</span><span class="special">;</span></pre>
<p>Reads the parameters of the distribution from a <code class="computeroutput">std::istream</code>. </p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="keyword">friend</span> <span class="keyword">bool</span> <a name="idp214738992-bb"></a><span class="keyword">operator</span><span class="special">==</span><span class="special">(</span><span class="keyword">const</span> <a class="link" href="negative_bino_idp151942992.html" title="Class template negative_binomial_distribution">negative_binomial_distribution</a> <span class="special">&amp;</span> lhs<span class="special">,</span> 
                       <span class="keyword">const</span> <a class="link" href="negative_bino_idp151942992.html" title="Class template negative_binomial_distribution">negative_binomial_distribution</a> <span class="special">&amp;</span> rhs<span class="special">)</span><span class="special">;</span></pre>
<p>Returns true if the two distributions will produce the same sequence of values, given equal generators. </p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="keyword">friend</span> <span class="keyword">bool</span> <a name="idp84858096-bb"></a><span class="keyword">operator</span><span class="special">!=</span><span class="special">(</span><span class="keyword">const</span> <a class="link" href="negative_bino_idp151942992.html" title="Class template negative_binomial_distribution">negative_binomial_distribution</a> <span class="special">&amp;</span> lhs<span class="special">,</span> 
                       <span class="keyword">const</span> <a class="link" href="negative_bino_idp151942992.html" title="Class template negative_binomial_distribution">negative_binomial_distribution</a> <span class="special">&amp;</span> rhs<span class="special">)</span><span class="special">;</span></pre>
<p>Returns true if the two distributions could produce different sequences of values, given equal generators. </p>
</li>
</ol></div>
</div>
</div>
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<td align="right"><div class="copyright-footer">Copyright &#169; 2000-2005 Jens Maurer<br>Copyright &#169; 2009, 2010 Steven Watanabe<p>
        Distributed under the Boost Software License, Version 1.0. (See accompanying
        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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