<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/> <meta http-equiv="X-UA-Compatible" content="IE=9"/> <meta name="generator" content="Doxygen 1.8.13"/> <meta name="viewport" content="width=device-width, initial-scale=1"/> <title>libstdc++: std::lognormal_distribution< _RealType > Class Template Reference</title> <link href="tabs.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="jquery.js"></script> <script type="text/javascript" src="dynsections.js"></script> <link href="navtree.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="resize.js"></script> <script type="text/javascript" src="navtreedata.js"></script> <script type="text/javascript" src="navtree.js"></script> <script type="text/javascript"> $(document).ready(initResizable); </script> <link 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Functions</a> | <a href="#friends">Friends</a> | <a href="a05798.html">List of all members</a> </div> <div class="headertitle"> <div class="title">std::lognormal_distribution< _RealType > Class Template Reference<div class="ingroups"><a class="el" href="a01427.html">Numerics</a> » <a class="el" href="a01444.html">Random Number Generation</a> » <a class="el" href="a01481.html">Random Number Distributions</a> » <a class="el" href="a01483.html">Normal Distributions</a></div></div> </div> </div><!--header--> <div class="contents"> <table class="memberdecls"> <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="nested-classes"></a> Classes</h2></td></tr> <tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="a05805.html">param_type</a></td></tr> <tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr> </table><table class="memberdecls"> <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-types"></a> 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="a05801.html#a26f7f5b94e8d179518168c21e7a706bf">result_type</a></td></tr> <tr class="separator:a26f7f5b94e8d179518168c21e7a706bf"><td class="memSeparator" colspan="2"> </td></tr> </table><table class="memberdecls"> <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a> Public Member Functions</h2></td></tr> <tr class="memitem:a060eb2dc83e7eadc2f0afb74c3e615ac"><td class="memItemLeft" align="right" valign="top"><a id="a060eb2dc83e7eadc2f0afb74c3e615ac"></a>  </td><td class="memItemRight" valign="bottom"><b>lognormal_distribution</b> (_RealType __m=_RealType(0), _RealType __s=_RealType(1))</td></tr> <tr class="separator:a060eb2dc83e7eadc2f0afb74c3e615ac"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:a5e92552744727c63083d92f74a0733f6"><td class="memItemLeft" align="right" valign="top"><a id="a5e92552744727c63083d92f74a0733f6"></a>  </td><td class="memItemRight" valign="bottom"><b>lognormal_distribution</b> (const <a class="el" href="a05805.html">param_type</a> &__p)</td></tr> <tr class="separator:a5e92552744727c63083d92f74a0733f6"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:a79601ae8290e3767447ca0f1cfe0a010"><td class="memTemplParams" colspan="2"><a id="a79601ae8290e3767447ca0f1cfe0a010"></a> 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> <tr class="separator:a79601ae8290e3767447ca0f1cfe0a010"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:a7551c5eb2365000a9deea77692289ba3"><td class="memTemplParams" colspan="2"><a id="a7551c5eb2365000a9deea77692289ba3"></a> 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="a05805.html">param_type</a> &__p)</td></tr> <tr class="separator:a7551c5eb2365000a9deea77692289ba3"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:adc145a624fea3e9aaa71ea1178d573a7"><td class="memTemplParams" colspan="2"><a id="adc145a624fea3e9aaa71ea1178d573a7"></a> 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="a05801.html#a26f7f5b94e8d179518168c21e7a706bf">result_type</a> *__f, <a class="el" href="a05801.html#a26f7f5b94e8d179518168c21e7a706bf">result_type</a> *__t, _UniformRandomNumberGenerator &__urng, const <a class="el" href="a05805.html">param_type</a> &__p)</td></tr> <tr class="separator:adc145a624fea3e9aaa71ea1178d573a7"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ab1fc8b2969b5ae475b075c9fc3b953b2"><td class="memItemLeft" align="right" valign="top"><a id="ab1fc8b2969b5ae475b075c9fc3b953b2"></a> _RealType </td><td class="memItemRight" valign="bottom"><b>m</b> () const</td></tr> <tr class="separator:ab1fc8b2969b5ae475b075c9fc3b953b2"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ae51c9700b0c6168babb2abdf188e50d0"><td class="memItemLeft" align="right" valign="top"><a class="el" href="a05801.html#a26f7f5b94e8d179518168c21e7a706bf">result_type</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="a05801.html#ae51c9700b0c6168babb2abdf188e50d0">max</a> () const</td></tr> <tr class="separator:ae51c9700b0c6168babb2abdf188e50d0"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:aa6d60ac02923738e93e5cc2813d9cfea"><td class="memItemLeft" align="right" valign="top"><a class="el" href="a05801.html#a26f7f5b94e8d179518168c21e7a706bf">result_type</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="a05801.html#aa6d60ac02923738e93e5cc2813d9cfea">min</a> () const</td></tr> <tr class="separator:aa6d60ac02923738e93e5cc2813d9cfea"><td class="memSeparator" colspan="2"> </td></tr> <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="a05801.html#a26f7f5b94e8d179518168c21e7a706bf">result_type</a> </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a05801.html#ae6fb96729b574441550992a32599df9a">operator()</a> (_UniformRandomNumberGenerator &__urng)</td></tr> <tr class="separator:ae6fb96729b574441550992a32599df9a"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ab0e517fc6a40131fcbfc358c601b04e6"><td class="memTemplParams" colspan="2"><a id="ab0e517fc6a40131fcbfc358c601b04e6"></a> template<typename _UniformRandomNumberGenerator > </td></tr> <tr class="memitem:ab0e517fc6a40131fcbfc358c601b04e6"><td class="memTemplItemLeft" align="right" valign="top"><a class="el" href="a05801.html#a26f7f5b94e8d179518168c21e7a706bf">result_type</a> </td><td class="memTemplItemRight" valign="bottom"><b>operator()</b> (_UniformRandomNumberGenerator &__urng, const <a class="el" href="a05805.html">param_type</a> &__p)</td></tr> <tr class="separator:ab0e517fc6a40131fcbfc358c601b04e6"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:a3533e00011a0d32c89697c809c98c765"><td class="memItemLeft" align="right" valign="top"><a class="el" href="a05805.html">param_type</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="a05801.html#a3533e00011a0d32c89697c809c98c765">param</a> () const</td></tr> <tr class="separator:a3533e00011a0d32c89697c809c98c765"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ae0ec61a8aca3872ff4b8a16e4696ad90"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="a05801.html#ae0ec61a8aca3872ff4b8a16e4696ad90">param</a> (const <a class="el" href="a05805.html">param_type</a> &__param)</td></tr> <tr class="separator:ae0ec61a8aca3872ff4b8a16e4696ad90"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:aad743c49b0d74f10dd9831daf56792a4"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="a05801.html#aad743c49b0d74f10dd9831daf56792a4">reset</a> ()</td></tr> <tr class="separator:aad743c49b0d74f10dd9831daf56792a4"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:a6ef789b4de83de5faf34882fe5a2201b"><td class="memItemLeft" align="right" valign="top"><a id="a6ef789b4de83de5faf34882fe5a2201b"></a> _RealType </td><td class="memItemRight" valign="bottom"><b>s</b> () const</td></tr> <tr class="separator:a6ef789b4de83de5faf34882fe5a2201b"><td class="memSeparator" colspan="2"> </td></tr> </table><table class="memberdecls"> <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="friends"></a> 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="a02885.html">std::basic_ostream</a>< _CharT, _Traits > & </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a05801.html#aad98f5fc7ecc4ae82fe15f6a67e80d1f">operator<<</a> (<a class="el" href="a02885.html">std::basic_ostream</a>< _CharT, _Traits > &__os, const <a class="el" href="a05801.html">std::lognormal_distribution</a>< _RealType1 > &__x)</td></tr> <tr class="separator:aad98f5fc7ecc4ae82fe15f6a67e80d1f"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:a2e49cbc5eaeb0e2ee18688adb7faff49"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="a05801.html#a2e49cbc5eaeb0e2ee18688adb7faff49">operator==</a> (const <a class="el" href="a05801.html">lognormal_distribution</a> &__d1, const <a class="el" href="a05801.html">lognormal_distribution</a> &__d2)</td></tr> <tr class="separator:a2e49cbc5eaeb0e2ee18688adb7faff49"><td class="memSeparator" colspan="2"> </td></tr> <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="a02881.html">std::basic_istream</a>< _CharT, _Traits > & </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a05801.html#a21983da6e9b4301e89130f48917e139b">operator>></a> (<a class="el" href="a02881.html">std::basic_istream</a>< _CharT, _Traits > &__is, <a class="el" href="a05801.html">std::lognormal_distribution</a>< _RealType1 > &__x)</td></tr> <tr class="separator:a21983da6e9b4301e89130f48917e139b"><td class="memSeparator" colspan="2"> </td></tr> </table> <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="a00422_source.html#l02133">2133</a> of file <a class="el" href="a00422_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> <div class="memitem"> <div class="memproto"> <div class="memtemplate"> template<typename _RealType = double> </div> <table class="memname"> <tr> <td class="memname">typedef _RealType <a class="el" href="a05801.html">std::lognormal_distribution</a>< _RealType >::<a class="el" href="a05801.html#a26f7f5b94e8d179518168c21e7a706bf">result_type</a></td> </tr> </table> </div><div class="memdoc"> <p>The type of the range of the distribution. </p> <p class="definition">Definition at line <a class="el" href="a00422_source.html#l02136">2136</a> of file <a class="el" href="a00422_source.html">random.h</a>.</p> </div> </div> <h2 class="groupheader">Member Function Documentation</h2> <a id="ae51c9700b0c6168babb2abdf188e50d0"></a> <h2 class="memtitle"><span class="permalink"><a href="#ae51c9700b0c6168babb2abdf188e50d0">◆ </a></span>max()</h2> <div class="memitem"> <div class="memproto"> <div class="memtemplate"> template<typename _RealType = double> </div> <table class="mlabels"> <tr> <td class="mlabels-left"> <table class="memname"> <tr> <td class="memname"><a class="el" href="a05801.html#a26f7f5b94e8d179518168c21e7a706bf">result_type</a> <a class="el" href="a05801.html">std::lognormal_distribution</a>< _RealType >::max </td> <td>(</td> <td class="paramname"></td><td>)</td> <td> const</td> </tr> </table> </td> <td class="mlabels-right"> <span class="mlabels"><span class="mlabel">inline</span></span> </td> </tr> </table> </div><div class="memdoc"> <p>Returns the least upper bound value of the distribution. </p> <p class="definition">Definition at line <a class="el" href="a00422_source.html#l02224">2224</a> of file <a class="el" href="a00422_source.html">random.h</a>.</p> <p class="reference">References <a class="el" href="a00089_source.html#l00324">std::numeric_limits< _Tp >::max()</a>.</p> </div> </div> <a id="aa6d60ac02923738e93e5cc2813d9cfea"></a> <h2 class="memtitle"><span class="permalink"><a href="#aa6d60ac02923738e93e5cc2813d9cfea">◆ </a></span>min()</h2> <div class="memitem"> <div class="memproto"> <div class="memtemplate"> template<typename _RealType = double> </div> <table class="mlabels"> <tr> <td class="mlabels-left"> <table class="memname"> <tr> <td class="memname"><a class="el" href="a05801.html#a26f7f5b94e8d179518168c21e7a706bf">result_type</a> <a class="el" href="a05801.html">std::lognormal_distribution</a>< _RealType >::min </td> <td>(</td> <td class="paramname"></td><td>)</td> <td> const</td> </tr> </table> </td> <td class="mlabels-right"> <span class="mlabels"><span class="mlabel">inline</span></span> </td> </tr> </table> </div><div class="memdoc"> <p>Returns the greatest lower bound value of the distribution. </p> <p class="definition">Definition at line <a class="el" href="a00422_source.html#l02217">2217</a> of file <a class="el" href="a00422_source.html">random.h</a>.</p> </div> </div> <a id="ae6fb96729b574441550992a32599df9a"></a> <h2 class="memtitle"><span class="permalink"><a href="#ae6fb96729b574441550992a32599df9a">◆ </a></span>operator()()</h2> <div class="memitem"> <div class="memproto"> <div class="memtemplate"> template<typename _RealType = double> </div> <div class="memtemplate"> template<typename _UniformRandomNumberGenerator > </div> <table class="mlabels"> <tr> <td class="mlabels-left"> <table class="memname"> <tr> <td class="memname"><a class="el" href="a05801.html#a26f7f5b94e8d179518168c21e7a706bf">result_type</a> <a class="el" href="a05801.html">std::lognormal_distribution</a>< _RealType >::operator() </td> <td>(</td> <td class="paramtype">_UniformRandomNumberGenerator & </td> <td class="paramname"><em>__urng</em></td><td>)</td> <td></td> </tr> </table> </td> <td class="mlabels-right"> <span class="mlabels"><span class="mlabel">inline</span></span> </td> </tr> </table> </div><div class="memdoc"> <p>Generating functions. </p> <p class="definition">Definition at line <a class="el" href="a00422_source.html#l02232">2232</a> of file <a class="el" href="a00422_source.html">random.h</a>.</p> <p class="reference">References <a class="el" href="a00047_source.html#l00762">std::exp()</a>.</p> </div> </div> <a id="a3533e00011a0d32c89697c809c98c765"></a> <h2 class="memtitle"><span class="permalink"><a href="#a3533e00011a0d32c89697c809c98c765">◆ </a></span>param() <span class="overload">[1/2]</span></h2> <div class="memitem"> <div class="memproto"> <div class="memtemplate"> template<typename _RealType = double> </div> <table class="mlabels"> <tr> <td class="mlabels-left"> <table class="memname"> <tr> <td class="memname"><a class="el" href="a05805.html">param_type</a> <a class="el" href="a05801.html">std::lognormal_distribution</a>< _RealType >::param </td> <td>(</td> <td class="paramname"></td><td>)</td> <td> const</td> </tr> </table> </td> <td class="mlabels-right"> <span class="mlabels"><span class="mlabel">inline</span></span> </td> </tr> </table> </div><div class="memdoc"> <p>Returns the parameter set of the distribution. </p> <p class="definition">Definition at line <a class="el" href="a00422_source.html#l02202">2202</a> of file <a class="el" href="a00422_source.html">random.h</a>.</p> </div> </div> <a id="ae0ec61a8aca3872ff4b8a16e4696ad90"></a> <h2 class="memtitle"><span class="permalink"><a href="#ae0ec61a8aca3872ff4b8a16e4696ad90">◆ </a></span>param() <span class="overload">[2/2]</span></h2> <div class="memitem"> <div class="memproto"> <div class="memtemplate"> template<typename _RealType = double> </div> <table class="mlabels"> <tr> <td class="mlabels-left"> <table class="memname"> <tr> <td class="memname">void <a class="el" href="a05801.html">std::lognormal_distribution</a>< _RealType >::param </td> <td>(</td> <td class="paramtype">const <a class="el" href="a05805.html">param_type</a> & </td> <td class="paramname"><em>__param</em></td><td>)</td> <td></td> </tr> </table> </td> <td class="mlabels-right"> <span class="mlabels"><span class="mlabel">inline</span></span> </td> </tr> </table> </div><div class="memdoc"> <p>Sets the parameter set of the distribution. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">__param</td><td>The new parameter set of the distribution. </td></tr> </table> </dd> </dl> <p class="definition">Definition at line <a class="el" href="a00422_source.html#l02210">2210</a> of file <a class="el" href="a00422_source.html">random.h</a>.</p> </div> </div> <a id="aad743c49b0d74f10dd9831daf56792a4"></a> <h2 class="memtitle"><span class="permalink"><a href="#aad743c49b0d74f10dd9831daf56792a4">◆ </a></span>reset()</h2> <div class="memitem"> <div class="memproto"> <div class="memtemplate"> template<typename _RealType = double> </div> <table class="mlabels"> <tr> <td class="mlabels-left"> <table class="memname"> <tr> <td class="memname">void <a class="el" href="a05801.html">std::lognormal_distribution</a>< _RealType >::reset </td> <td>(</td> <td class="paramname"></td><td>)</td> <td></td> </tr> </table> </td> <td class="mlabels-right"> <span class="mlabels"><span class="mlabel">inline</span></span> </td> </tr> </table> </div><div class="memdoc"> <p>Resets the distribution state. </p> <p class="definition">Definition at line <a class="el" href="a00422_source.html#l02184">2184</a> of file <a class="el" href="a00422_source.html">random.h</a>.</p> </div> </div> <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> <div class="memitem"> <div class="memproto"> <div class="memtemplate"> template<typename _RealType = double> </div> <div class="memtemplate"> template<typename _RealType1 , typename _CharT , typename _Traits > </div> <table class="mlabels"> <tr> <td class="mlabels-left"> <table class="memname"> <tr> <td class="memname"><a class="el" href="a02885.html">std::basic_ostream</a><_CharT, _Traits>& operator<< </td> <td>(</td> <td class="paramtype"><a class="el" href="a02885.html">std::basic_ostream</a>< _CharT, _Traits > & </td> <td class="paramname"><em>__os</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">const <a class="el" href="a05801.html">std::lognormal_distribution</a>< _RealType1 > & </td> <td class="paramname"><em>__x</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </td> <td class="mlabels-right"> <span class="mlabels"><span class="mlabel">friend</span></span> </td> </tr> </table> </div><div class="memdoc"> <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> <table class="params"> <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> </table> </dd> </dl> <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> </div> </div> <a id="a2e49cbc5eaeb0e2ee18688adb7faff49"></a> <h2 class="memtitle"><span class="permalink"><a href="#a2e49cbc5eaeb0e2ee18688adb7faff49">◆ </a></span>operator==</h2> <div class="memitem"> <div class="memproto"> <div class="memtemplate"> template<typename _RealType = double> </div> <table class="mlabels"> <tr> <td class="mlabels-left"> <table class="memname"> <tr> <td class="memname">bool operator== </td> <td>(</td> <td class="paramtype">const <a class="el" href="a05801.html">lognormal_distribution</a>< _RealType > & </td> <td class="paramname"><em>__d1</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">const <a class="el" href="a05801.html">lognormal_distribution</a>< _RealType > & </td> <td class="paramname"><em>__d2</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </td> <td class="mlabels-right"> <span class="mlabels"><span class="mlabel">friend</span></span> </td> </tr> </table> </div><div class="memdoc"> <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="a00422_source.html#l02269">2269</a> of file <a class="el" href="a00422_source.html">random.h</a>.</p> </div> </div> <a id="a21983da6e9b4301e89130f48917e139b"></a> <h2 class="memtitle"><span class="permalink"><a href="#a21983da6e9b4301e89130f48917e139b">◆ </a></span>operator>></h2> <div class="memitem"> <div class="memproto"> <div class="memtemplate"> template<typename _RealType = double> </div> <div class="memtemplate"> template<typename _RealType1 , typename _CharT , typename _Traits > </div> <table class="mlabels"> <tr> <td class="mlabels-left"> <table class="memname"> <tr> <td class="memname"><a class="el" href="a02881.html">std::basic_istream</a><_CharT, _Traits>& operator>> </td> <td>(</td> <td class="paramtype"><a class="el" href="a02881.html">std::basic_istream</a>< _CharT, _Traits > & </td> <td class="paramname"><em>__is</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype"><a class="el" href="a05801.html">std::lognormal_distribution</a>< _RealType1 > & </td> <td class="paramname"><em>__x</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </td> <td class="mlabels-right"> <span class="mlabels"><span class="mlabel">friend</span></span> </td> </tr> </table> </div><div class="memdoc"> <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> <table class="params"> <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> </table> </dd> </dl> <dl class="section return"><dt>Returns</dt><dd>The input stream with <code>__x</code> extracted or in an error state. </dd></dl> </div> </div> <hr/>The documentation for this class was generated from the following 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