doc/html/boost/random/gamma_distribution.html


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<a name="boost.random.gamma_distribution"></a><div class="titlepage"></div>
<div class="refnamediv">
<h2><span class="refentrytitle">Class template gamma_distribution</span></h2>
<p>boost::random::gamma_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.gamma_distribution_hpp" title="Header &lt;boost/random/gamma_distribution.hpp&gt;">boost/random/gamma_distribution.hpp</a>&gt;

</span><span class="keyword">template</span><span class="special">&lt;</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="gamma_distribution.html" title="Class template gamma_distribution">gamma_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">RealType</span> <a name="boost.random.gamma_distribution.input_type"></a><span class="identifier">input_type</span><span class="special">;</span> 
  <span class="keyword">typedef</span> <span class="identifier">RealType</span> <a name="boost.random.gamma_distribution.result_type"></a><span class="identifier">result_type</span><span class="special">;</span>

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

  <span class="keyword">class</span> <a class="link" href="gamma_distribution/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="gamma_distribution.html" title="Class template gamma_distribution">gamma_distribution</a> <a class="link" href="gamma_distribution/param_type.html#boost.random.gamma_distribution.param_type.distribution_type"><span class="identifier">distribution_type</span></a><span class="special">;</span>

    <span class="comment">// <a class="link" href="gamma_distribution/param_type.html#boost.random.gamma_distribution.param_typeconstruct-copy-destruct">construct/copy/destruct</a></span>
    <a class="link" href="gamma_distribution/param_type.html#idp708991984-bb"><span class="identifier">param_type</span></a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">RealType</span> <span class="special">&amp;</span> <span class="special">=</span> <span class="number">1</span><span class="special">.</span><span class="number">0</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">RealType</span> <span class="special">&amp;</span> <span class="special">=</span> <span class="number">1</span><span class="special">.</span><span class="number">0</span><span class="special">)</span><span class="special">;</span>

    <span class="comment">// <a class="link" href="gamma_distribution/param_type.html#idp708988128-bb">public member functions</a></span>
    <span class="identifier">RealType</span> <a class="link" href="gamma_distribution/param_type.html#idp708988688-bb"><span class="identifier">alpha</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="gamma_distribution/param_type.html#idp708990256-bb"><span class="identifier">beta</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="gamma_distribution/param_type.html#idp708995856-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="gamma_distribution/param_type.html#idp708996416-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="gamma_distribution/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="gamma_distribution/param_type.html#idp709001424-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="gamma_distribution/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="gamma_distribution/param_type.html#idp709006272-bb"><span class="keyword">operator</span><span class="special">==</span></a><span class="special">(</span><span class="keyword">const</span> <a class="link" href="gamma_distribution/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="gamma_distribution/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="gamma_distribution/param_type.html#idp709009856-bb"><span class="keyword">operator</span><span class="special">!=</span></a><span class="special">(</span><span class="keyword">const</span> <a class="link" href="gamma_distribution/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="gamma_distribution/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="gamma_distribution.html#boost.random.gamma_distributionconstruct-copy-destruct">construct/copy/destruct</a></span>
  <span class="keyword">explicit</span> <a class="link" href="gamma_distribution.html#idp709034000-bb"><span class="identifier">gamma_distribution</span></a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">result_type</span> <span class="special">&amp;</span> <span class="special">=</span> <span class="number">1</span><span class="special">.</span><span class="number">0</span><span class="special">,</span> 
                              <span class="keyword">const</span> <span class="identifier">result_type</span> <span class="special">&amp;</span> <span class="special">=</span> <span class="number">1</span><span class="special">.</span><span class="number">0</span><span class="special">)</span><span class="special">;</span>
  <span class="keyword">explicit</span> <a class="link" href="gamma_distribution.html#idp709037984-bb"><span class="identifier">gamma_distribution</span></a><span class="special">(</span><span class="keyword">const</span> <a class="link" href="gamma_distribution/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="gamma_distribution.html#idp709015296-bb">public member functions</a></span>
  <span class="identifier">RealType</span> <a class="link" href="gamma_distribution.html#idp709015856-bb"><span class="identifier">alpha</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="gamma_distribution.html#idp709017424-bb"><span class="identifier">beta</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="gamma_distribution.html#idp709018992-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">RealType</span> <a class="link" href="gamma_distribution.html#idp709020576-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="gamma_distribution/param_type.html" title="Class param_type">param_type</a> <a class="link" href="gamma_distribution.html#idp709021696-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="gamma_distribution.html#idp709023392-bb"><span class="identifier">param</span></a><span class="special">(</span><span class="keyword">const</span> <a class="link" href="gamma_distribution/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="gamma_distribution.html#idp709025824-bb"><span class="identifier">reset</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Engine<span class="special">&gt;</span> <span class="identifier">result_type</span> <a class="link" href="gamma_distribution.html#idp709027184-bb"><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span></a><span class="special">(</span><span class="identifier">Engine</span> <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> URNG<span class="special">&gt;</span> 
    <span class="identifier">RealType</span> <a class="link" href="gamma_distribution.html#idp709030048-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="gamma_distribution/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="comment">// <a class="link" href="gamma_distribution.html#idp709040960-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="gamma_distribution.html#idp709041520-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="gamma_distribution.html" title="Class template gamma_distribution">gamma_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="gamma_distribution.html#idp709047376-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="gamma_distribution.html" title="Class template gamma_distribution">gamma_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="gamma_distribution.html#idp709053072-bb"><span class="keyword">operator</span><span class="special">==</span></a><span class="special">(</span><span class="keyword">const</span> <a class="link" href="gamma_distribution.html" title="Class template gamma_distribution">gamma_distribution</a> <span class="special">&amp;</span><span class="special">,</span> 
                         <span class="keyword">const</span> <a class="link" href="gamma_distribution.html" title="Class template gamma_distribution">gamma_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="gamma_distribution.html#idp709056704-bb"><span class="keyword">operator</span><span class="special">!=</span></a><span class="special">(</span><span class="keyword">const</span> <a class="link" href="gamma_distribution.html" title="Class template gamma_distribution">gamma_distribution</a> <span class="special">&amp;</span><span class="special">,</span> 
                         <span class="keyword">const</span> <a class="link" href="gamma_distribution.html" title="Class template gamma_distribution">gamma_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="idp495016688"></a><h2>Description</h2>
<p>The gamma distribution is a continuous distribution with two parameters alpha and beta. It produces values &gt; 0.</p>
<p>It has <span class="inlinemediaobject"><img src="../../images/random//form_13.png"></span>. </p>
<div class="refsect2">
<a name="idp495020352"></a><h3>
<a name="boost.random.gamma_distributionconstruct-copy-destruct"></a><code class="computeroutput">gamma_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="idp709034000-bb"></a><span class="identifier">gamma_distribution</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">result_type</span> <span class="special">&amp;</span> alpha <span class="special">=</span> <span class="number">1</span><span class="special">.</span><span class="number">0</span><span class="special">,</span> 
                            <span class="keyword">const</span> <span class="identifier">result_type</span> <span class="special">&amp;</span> beta <span class="special">=</span> <span class="number">1</span><span class="special">.</span><span class="number">0</span><span class="special">)</span><span class="special">;</span></pre>
<p>Creates a new <code class="computeroutput"><a class="link" href="gamma_distribution.html" title="Class template gamma_distribution">gamma_distribution</a></code> with parameters "alpha" and "beta".</p>
<p>Requires: alpha &gt; 0 &amp;&amp; beta &gt; 0 </p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="keyword">explicit</span> <a name="idp709037984-bb"></a><span class="identifier">gamma_distribution</span><span class="special">(</span><span class="keyword">const</span> <a class="link" href="gamma_distribution/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>Constructs a <code class="computeroutput"><code class="computeroutput"><a class="link" href="gamma_distribution.html" title="Class template gamma_distribution">gamma_distribution</a></code></code> from its parameters. </p>
</li>
</ol></div>
</div>
<div class="refsect2">
<a name="idp495046704"></a><h3>
<a name="idp709015296-bb"></a><code class="computeroutput">gamma_distribution</code> public member functions</h3>
<div class="orderedlist"><ol class="orderedlist" type="1">
<li class="listitem">
<pre class="literallayout"><span class="identifier">RealType</span> <a name="idp709015856-bb"></a><span class="identifier">alpha</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
<p>Returns the "alpha" paramter of the distribution. </p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="identifier">RealType</span> <a name="idp709017424-bb"></a><span class="identifier">beta</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
<p>Returns the "beta" parameter of the distribution. </p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="identifier">RealType</span> <a name="idp709018992-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>
</li>
<li class="listitem"><pre class="literallayout"><span class="identifier">RealType</span> <a name="idp709020576-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></li>
<li class="listitem">
<pre class="literallayout"><a class="link" href="gamma_distribution/param_type.html" title="Class param_type">param_type</a> <a name="idp709021696-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>
</li>
<li class="listitem">
<pre class="literallayout"><span class="keyword">void</span> <a name="idp709023392-bb"></a><span class="identifier">param</span><span class="special">(</span><span class="keyword">const</span> <a class="link" href="gamma_distribution/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 the parameters of the distribution. </p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="keyword">void</span> <a name="idp709025824-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>
</li>
<li class="listitem">
<pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Engine<span class="special">&gt;</span> <span class="identifier">result_type</span> <a name="idp709027184-bb"></a><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span><span class="special">(</span><span class="identifier">Engine</span> <span class="special">&amp;</span> eng<span class="special">)</span><span class="special">;</span></pre>
<p>Returns a random variate distributed according to the gamma distribution. </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> URNG<span class="special">&gt;</span> 
  <span class="identifier">RealType</span> <a name="idp709030048-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="gamma_distribution/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></li>
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<a name="idp495109216"></a><h3>
<a name="idp709040960-bb"></a><code class="computeroutput">gamma_distribution</code> friend functions</h3>
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<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="idp709041520-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="gamma_distribution.html" title="Class template gamma_distribution">gamma_distribution</a> <span class="special">&amp;</span> gd<span class="special">)</span><span class="special">;</span></pre>
<p>Writes a <code class="computeroutput"><code class="computeroutput"><a class="link" href="gamma_distribution.html" title="Class template gamma_distribution">gamma_distribution</a></code></code> to a <code class="computeroutput">std::ostream</code>. </p>
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<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="idp709047376-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="gamma_distribution.html" title="Class template gamma_distribution">gamma_distribution</a> <span class="special">&amp;</span> gd<span class="special">)</span><span class="special">;</span></pre>
<p>Reads a <code class="computeroutput"><code class="computeroutput"><a class="link" href="gamma_distribution.html" title="Class template gamma_distribution">gamma_distribution</a></code></code> from a <code class="computeroutput">std::istream</code>. </p>
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<pre class="literallayout"><span class="keyword">friend</span> <span class="keyword">bool</span> <a name="idp709053072-bb"></a><span class="keyword">operator</span><span class="special">==</span><span class="special">(</span><span class="keyword">const</span> <a class="link" href="gamma_distribution.html" title="Class template gamma_distribution">gamma_distribution</a> <span class="special">&amp;</span> lhs<span class="special">,</span> 
                       <span class="keyword">const</span> <a class="link" href="gamma_distribution.html" title="Class template gamma_distribution">gamma_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 identical sequences of random variates given equal generators. </p>
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<pre class="literallayout"><span class="keyword">friend</span> <span class="keyword">bool</span> <a name="idp709056704-bb"></a><span class="keyword">operator</span><span class="special">!=</span><span class="special">(</span><span class="keyword">const</span> <a class="link" href="gamma_distribution.html" title="Class template gamma_distribution">gamma_distribution</a> <span class="special">&amp;</span> lhs<span class="special">,</span> 
                       <span class="keyword">const</span> <a class="link" href="gamma_distribution.html" title="Class template gamma_distribution">gamma_distribution</a> <span class="special">&amp;</span> rhs<span class="special">)</span><span class="special">;</span></pre>
<p>Returns true if the two distributions can produce different sequences of random variates, given equal generators. </p>
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</ol></div>
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        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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