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<div class="title">std::lognormal_distribution< _RealType > Class Template Reference<div class="ingroups"><a class="el" href="a01473.html">Numerics</a> » <a class="el" href="a01491.html">Random Number Generation</a> » <a class="el" href="a01532.html">Random Number Distributions</a> » <a class="el" href="a01534.html">Normal Distributions</a></div></div> </div>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="a06320.html">param_type</a></td></tr>
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Public Types</h2></td></tr>
<tr class="memitem:a26f7f5b94e8d179518168c21e7a706bf"><td class="memItemLeft" align="right" valign="top">typedef _RealType </td><td class="memItemRight" valign="bottom"><a class="el" href="a06316.html#a26f7f5b94e8d179518168c21e7a706bf">result_type</a></td></tr>
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Public Member Functions</h2></td></tr>
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 </td><td class="memItemRight" valign="bottom"><b>lognormal_distribution</b> (_RealType __m=_RealType(0), _RealType __s=_RealType(1))</td></tr>
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 </td><td class="memItemRight" valign="bottom"><b>lognormal_distribution</b> (const <a class="el" href="a06320.html">param_type</a> &__p)</td></tr>
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template<typename _ForwardIterator , typename _UniformRandomNumberGenerator > </td></tr>
<tr class="memitem:a79601ae8290e3767447ca0f1cfe0a010"><td class="memTemplItemLeft" align="right" valign="top">void </td><td class="memTemplItemRight" valign="bottom"><b>__generate</b> (_ForwardIterator __f, _ForwardIterator __t, _UniformRandomNumberGenerator &__urng)</td></tr>
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template<typename _ForwardIterator , typename _UniformRandomNumberGenerator > </td></tr>
<tr class="memitem:a7551c5eb2365000a9deea77692289ba3"><td class="memTemplItemLeft" align="right" valign="top">void </td><td class="memTemplItemRight" valign="bottom"><b>__generate</b> (_ForwardIterator __f, _ForwardIterator __t, _UniformRandomNumberGenerator &__urng, const <a class="el" href="a06320.html">param_type</a> &__p)</td></tr>
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template<typename _UniformRandomNumberGenerator > </td></tr>
<tr class="memitem:adc145a624fea3e9aaa71ea1178d573a7"><td class="memTemplItemLeft" align="right" valign="top">void </td><td class="memTemplItemRight" valign="bottom"><b>__generate</b> (<a class="el" href="a06316.html#a26f7f5b94e8d179518168c21e7a706bf">result_type</a> *__f, <a class="el" href="a06316.html#a26f7f5b94e8d179518168c21e7a706bf">result_type</a> *__t, _UniformRandomNumberGenerator &__urng, const <a class="el" href="a06320.html">param_type</a> &__p)</td></tr>
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_RealType </td><td class="memItemRight" valign="bottom"><b>m</b> () const</td></tr>
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<tr class="memitem:ae51c9700b0c6168babb2abdf188e50d0"><td class="memItemLeft" align="right" valign="top"><a class="el" href="a06316.html#a26f7f5b94e8d179518168c21e7a706bf">result_type</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="a06316.html#ae51c9700b0c6168babb2abdf188e50d0">max</a> () const</td></tr>
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<tr class="memitem:ae6fb96729b574441550992a32599df9a"><td class="memTemplParams" colspan="2">template<typename _UniformRandomNumberGenerator > </td></tr>
<tr class="memitem:ae6fb96729b574441550992a32599df9a"><td class="memTemplItemLeft" align="right" valign="top"><a class="el" href="a06316.html#a26f7f5b94e8d179518168c21e7a706bf">result_type</a> </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a06316.html#ae6fb96729b574441550992a32599df9a">operator()</a> (_UniformRandomNumberGenerator &__urng)</td></tr>
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template<typename _UniformRandomNumberGenerator > </td></tr>
<tr class="memitem:ab0e517fc6a40131fcbfc358c601b04e6"><td class="memTemplItemLeft" align="right" valign="top"><a class="el" href="a06316.html#a26f7f5b94e8d179518168c21e7a706bf">result_type</a> </td><td class="memTemplItemRight" valign="bottom"><b>operator()</b> (_UniformRandomNumberGenerator &__urng, const <a class="el" href="a06320.html">param_type</a> &__p)</td></tr>
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<tr class="memitem:ae0ec61a8aca3872ff4b8a16e4696ad90"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="a06316.html#ae0ec61a8aca3872ff4b8a16e4696ad90">param</a> (const <a class="el" href="a06320.html">param_type</a> &__param)</td></tr>
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<tr class="memitem:aad743c49b0d74f10dd9831daf56792a4"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="a06316.html#aad743c49b0d74f10dd9831daf56792a4">reset</a> ()</td></tr>
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_RealType </td><td class="memItemRight" valign="bottom"><b>s</b> () const</td></tr>
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Friends</h2></td></tr>
<tr class="memitem:aad98f5fc7ecc4ae82fe15f6a67e80d1f"><td class="memTemplParams" colspan="2">template<typename _RealType1 , typename _CharT , typename _Traits > </td></tr>
<tr class="memitem:aad98f5fc7ecc4ae82fe15f6a67e80d1f"><td class="memTemplItemLeft" align="right" valign="top"><a class="el" href="a02460.html">std::basic_ostream</a>< _CharT, _Traits > & </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a06316.html#aad98f5fc7ecc4ae82fe15f6a67e80d1f">operator<<</a> (<a class="el" href="a02460.html">std::basic_ostream</a>< _CharT, _Traits > &__os, const <a class="el" href="a06316.html">std::lognormal_distribution</a>< _RealType1 > &__x)</td></tr>
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<tr class="memitem:a2e49cbc5eaeb0e2ee18688adb7faff49"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="a06316.html#a2e49cbc5eaeb0e2ee18688adb7faff49">operator==</a> (const <a class="el" href="a06316.html">lognormal_distribution</a> &__d1, const <a class="el" href="a06316.html">lognormal_distribution</a> &__d2)</td></tr>
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<tr class="memitem:a21983da6e9b4301e89130f48917e139b"><td class="memTemplParams" colspan="2">template<typename _RealType1 , typename _CharT , typename _Traits > </td></tr>
<tr class="memitem:a21983da6e9b4301e89130f48917e139b"><td class="memTemplItemLeft" align="right" valign="top"><a class="el" href="a02456.html">std::basic_istream</a>< _CharT, _Traits > & </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a06316.html#a21983da6e9b4301e89130f48917e139b">operator>></a> (<a class="el" href="a02456.html">std::basic_istream</a>< _CharT, _Traits > &__is, <a class="el" href="a06316.html">std::lognormal_distribution</a>< _RealType1 > &__x)</td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><h3>template<typename _RealType = double><br />
class std::lognormal_distribution< _RealType ></h3>
<p>A lognormal_distribution random number distribution. </p>
<p>The formula for the normal probability mass function is </p><p class="formulaDsp">
<img class="formulaDsp" alt="\[ p(x|m,s) = \frac{1}{sx\sqrt{2\pi}} \exp{-\frac{(\ln{x} - m)^2}{2s^2}} \]" src="form_6.png"/>
</p>
<p class="definition">Definition at line <a class="el" href="a00452_source.html#l02143">2143</a> of file <a class="el" href="a00452_source.html">random.h</a>.</p>
</div><h2 class="groupheader">Member Typedef Documentation</h2>
<a id="a26f7f5b94e8d179518168c21e7a706bf"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a26f7f5b94e8d179518168c21e7a706bf">◆ </a></span>result_type</h2>
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template<typename _RealType = double> </div>
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<td class="memname">typedef _RealType <a class="el" href="a06316.html">std::lognormal_distribution</a>< _RealType >::<a class="el" href="a06316.html#a26f7f5b94e8d179518168c21e7a706bf">result_type</a></td>
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<p>The type of the range of the distribution. </p>
<p class="definition">Definition at line <a class="el" href="a00452_source.html#l02146">2146</a> of file <a class="el" href="a00452_source.html">random.h</a>.</p>
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<h2 class="groupheader">Member Function Documentation</h2>
<a id="ae51c9700b0c6168babb2abdf188e50d0"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ae51c9700b0c6168babb2abdf188e50d0">◆ </a></span>max()</h2>
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template<typename _RealType = double> </div>
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<td class="memname"><a class="el" href="a06316.html#a26f7f5b94e8d179518168c21e7a706bf">result_type</a> <a class="el" href="a06316.html">std::lognormal_distribution</a>< _RealType >::max </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
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<p>Returns the least upper bound value of the distribution. </p>
<p class="definition">Definition at line <a class="el" href="a00452_source.html#l02239">2239</a> of file <a class="el" href="a00452_source.html">random.h</a>.</p>
<p class="reference">References <a class="el" href="a00095_source.html#l00321">std::numeric_limits< _Tp >::max()</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#aa6d60ac02923738e93e5cc2813d9cfea">◆ </a></span>min()</h2>
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template<typename _RealType = double> </div>
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<td class="paramname"></td><td>)</td>
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<p>Returns the greatest lower bound value of the distribution. </p>
<p class="definition">Definition at line <a class="el" href="a00452_source.html#l02232">2232</a> of file <a class="el" href="a00452_source.html">random.h</a>.</p>
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<a id="ae6fb96729b574441550992a32599df9a"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ae6fb96729b574441550992a32599df9a">◆ </a></span>operator()()</h2>
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template<typename _RealType = double> </div>
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template<typename _UniformRandomNumberGenerator > </div>
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<td class="memname"><a class="el" href="a06316.html#a26f7f5b94e8d179518168c21e7a706bf">result_type</a> <a class="el" href="a06316.html">std::lognormal_distribution</a>< _RealType >::operator() </td>
<td>(</td>
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<td class="paramname"><em>__urng</em></td><td>)</td>
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<p>Generating functions. </p>
<p class="definition">Definition at line <a class="el" href="a00452_source.html#l02247">2247</a> of file <a class="el" href="a00452_source.html">random.h</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a3533e00011a0d32c89697c809c98c765">◆ </a></span>param() <span class="overload">[1/2]</span></h2>
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<p>Returns the parameter set of the distribution. </p>
<p class="definition">Definition at line <a class="el" href="a00452_source.html#l02217">2217</a> of file <a class="el" href="a00452_source.html">random.h</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#ae0ec61a8aca3872ff4b8a16e4696ad90">◆ </a></span>param() <span class="overload">[2/2]</span></h2>
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<p>Sets the parameter set of the distribution. </p>
<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">__param</td><td>The new parameter set of the distribution. </td></tr>
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<p class="definition">Definition at line <a class="el" href="a00452_source.html#l02225">2225</a> of file <a class="el" href="a00452_source.html">random.h</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#aad743c49b0d74f10dd9831daf56792a4">◆ </a></span>reset()</h2>
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template<typename _RealType = double> </div>
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<td class="memname">void <a class="el" href="a06316.html">std::lognormal_distribution</a>< _RealType >::reset </td>
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<p>Resets the distribution state. </p>
<p class="definition">Definition at line <a class="el" href="a00452_source.html#l02199">2199</a> of file <a class="el" href="a00452_source.html">random.h</a>.</p>
<p class="reference">References <a class="el" href="a00452_source.html#l01989">std::normal_distribution< _RealType >::reset()</a>.</p>
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<h2 class="groupheader">Friends And Related Function Documentation</h2>
<a id="aad98f5fc7ecc4ae82fe15f6a67e80d1f"></a>
<h2 class="memtitle"><span class="permalink"><a href="#aad98f5fc7ecc4ae82fe15f6a67e80d1f">◆ </a></span>operator<<</h2>
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template<typename _RealType = double> </div>
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template<typename _RealType1 , typename _CharT , typename _Traits > </div>
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<td class="paramtype">const <a class="el" href="a06316.html">std::lognormal_distribution</a>< _RealType1 > & </td>
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<p>Inserts a lognormal_distribution random number distribution <code>__x</code> into the output stream <code>__os</code>. </p>
<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">__os</td><td>An output stream. </td></tr>
<tr><td class="paramname">__x</td><td>A lognormal_distribution random number distribution.</td></tr>
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<dl class="section return"><dt>Returns</dt><dd>The output stream with the state of <code>__x</code> inserted or in an error state. </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#a2e49cbc5eaeb0e2ee18688adb7faff49">◆ </a></span>operator==</h2>
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<p>Return true if two lognormal distributions have the same parameters and the sequences that would be generated are equal. </p>
<p class="definition">Definition at line <a class="el" href="a00452_source.html#l02284">2284</a> of file <a class="el" href="a00452_source.html">random.h</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a21983da6e9b4301e89130f48917e139b">◆ </a></span>operator>></h2>
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template<typename _RealType = double> </div>
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template<typename _RealType1 , typename _CharT , typename _Traits > </div>
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<td class="memname"><a class="el" href="a02456.html">std::basic_istream</a><_CharT, _Traits>& operator>> </td>
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<td class="paramname"><em>__is</em>, </td>
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<p>Extracts a lognormal_distribution random number distribution <code>__x</code> from the input stream <code>__is</code>. </p>
<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">__is</td><td>An input stream. </td></tr>
<tr><td class="paramname">__x</td><td>A lognormal_distribution random number generator engine.</td></tr>
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</dd>
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<dl class="section return"><dt>Returns</dt><dd>The input stream with <code>__x</code> extracted or in an error state. </dd></dl>
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<hr/>The documentation for this class was generated from the following files:<ul>
<li><a class="el" href="a00452_source.html">random.h</a></li>
<li><a class="el" href="a17055_source.html">bits/random.tcc</a></li>
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