pat__support_8h-source.html

这是一个用于数据挖掘的常用算法的模板库（数据挖掘的C++模板库for UNIX)

<a name="l00077"></a>00077   <span class="keywordtype">bool</span> is_freq(<span class="keyword">const</span> <span class="keywordtype">int</span>&amp; ms)<span class="keyword"> const </span>{<span class="keywordflow">return</span> _sup&gt;=ms;}
<a name="l00078"></a>00078   
<a name="l00079"></a>00079   <span class="comment">// parimi: commented out b'cos it is not clear what it should do</span>
<a name="l00080"></a>00080   <span class="keywordtype">int</span> get_sup()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> _sup;}
<a name="l00081"></a>00081 
<a name="l00082"></a>00082   <span class="keywordtype">void</span> set_vals(<span class="keyword">const</span> <a class="code" href="classpattern__support.html">pattern_support&lt;MP&gt;</a>* s) {_sup=s-&gt;<a class="code" href="classpattern__support.html#852909a168b8a89b87ce7ef2524fbc91">_sup</a>; _valid=s-&gt;<a class="code" href="classpattern__support.html#928cda703e33effa2df6e4560a1d3ac1">_valid</a>;}
<a name="l00083"></a>00083 
<a name="l00084"></a>00084   <span class="keywordtype">void</span> set_sup(<span class="keyword">const</span> std::pair&lt;int,int&gt;&amp; s) { 
<a name="l00085"></a>00085      <span class="comment">// Ignore the second element in the pair - used for induced mining.</span>
<a name="l00086"></a>00086      _sup=s.first;
<a name="l00087"></a>00087   }
<a name="l00088"></a>00088 
<a name="l00089"></a>00089   <span class="comment">// friend extraction</span>
<a name="l00090"></a>00090   <span class="keyword">friend</span> std::ostream&amp; operator&lt;&lt; &lt;&gt;(std::ostream&amp;, <span class="keyword">const</span> <a class="code" href="classpattern__support.html">pattern_support&lt;MP&gt;</a>&amp;);
<a name="l00091"></a>00091 
<a name="l00092"></a>00092   <span class="comment">// NOTE: validity and frequency are synonymous for generic patterns</span>
<a name="l00093"></a>00093 
<a name="l00094"></a>00094  <span class="keyword">private</span>:
<a name="l00095"></a>00095   <span class="keywordtype">int</span> _sup;
<a name="l00096"></a>00096   <span class="keywordtype">bool</span> _valid;
<a name="l00097"></a>00097 
<a name="l00098"></a>00098 };<span class="comment">//end class pattern_support</span>
<a name="l00099"></a>00099 
<a name="l00100"></a>00100 
<a name="l00101"></a>00101 <span class="keyword">template</span>&lt;<span class="keyword">typename</span> MP&gt;
<a name="l00102"></a>00102 std::ostream&amp; operator&lt;&lt; (std::ostream&amp; ostr, const pattern_support&lt;MP&gt;&amp; ps) {
<a name="l00103"></a>00103   ostr&lt;&lt;<span class="stringliteral">"Support: "</span>&lt;&lt;ps._sup&lt;&lt;std::endl;
<a name="l00104"></a>00104   <span class="keywordflow">return</span> ostr;
<a name="l00105"></a>00105 }
<a name="l00106"></a>00106 
<a name="l00107"></a>00107 <span class="keyword">template</span>&lt;<span class="keyword">class</span> T&gt;
<a name="l00108"></a>00108 std::ostream&amp; operator&lt;&lt; (std::ostream&amp; ostr, <span class="keyword">const</span> <a class="code" href="classpattern__support.html">pattern_support</a>&lt;<a class="code" href="classproplist.html">proplist</a>&lt;Fk_Fk, 
<a name="l00109"></a>00109               <a class="code" href="classproplist.html">proplist</a>&lt;vert_mine, <a class="code" href="classproplist.html">proplist&lt;induced, T &gt;</a> &gt; &gt; &gt;&amp; ps) {
<a name="l00110"></a>00110 
<a name="l00111"></a>00111   <span class="comment">//ostr&lt;&lt;"Support: "&lt;&lt;ps._isup &lt;&lt; " (" &lt;&lt; ps._esup &lt;&lt; " )" &lt;&lt; std::endl;</span>
<a name="l00112"></a>00112   ostr&lt;&lt;<span class="stringliteral">"Support: "</span>&lt;&lt;ps._isup &lt;&lt; std::endl;
<a name="l00113"></a>00113   <span class="keywordflow">return</span> ostr;
<a name="l00114"></a>00114 }
<a name="l00115"></a>00115 
<a name="l00120"></a>00120 <span class="keyword">template</span>&lt;<span class="keyword">class</span> T&gt;
<a name="l00121"></a><a class="code" href="classpattern__support_3_01proplist_3_01Fk__Fk_00_01proplist_3_01vert__mine_00_01proplist_3_01induced_00_01T_01_4_01_4_01_4_01_4.html">00121</a> <span class="keyword">class </span><a class="code" href="classpattern__support.html">pattern_support</a>&lt;proplist&lt;Fk_Fk, proplist&lt;vert_mine, proplist&lt;induced, T &gt; &gt; &gt; &gt;
<a name="l00122"></a>00122 {
<a name="l00123"></a>00123 
<a name="l00124"></a>00124 <span class="keyword">public</span>:
<a name="l00125"></a>00125   <span class="comment">//constructor</span>
<a name="l00126"></a>00126   <a class="code" href="classpattern__support.html">pattern_support</a>(<span class="keyword">const</span> <span class="keywordtype">int</span>&amp; is=0, <span class="keyword">const</span> <span class="keywordtype">int</span>&amp; s=0, <span class="keywordtype">bool</span> v=0): _isup(is), _esup(s) {}
<a name="l00127"></a>00127 
<a name="l00128"></a>00128   <span class="keywordtype">bool</span> is_valid(<span class="keyword">const</span> <span class="keywordtype">int</span>&amp; minsup)<span class="keyword"> const </span>{
<a name="l00129"></a>00129     <span class="keywordflow">return</span> (_isup&gt;=minsup || (_esup&gt;=minsup));
<a name="l00130"></a>00130   }
<a name="l00131"></a>00131 
<a name="l00132"></a>00132   <span class="keywordtype">bool</span> is_freq(<span class="keyword">const</span> <span class="keywordtype">int</span>&amp; minsup)<span class="keyword"> const </span>{ 
<a name="l00133"></a>00133      <span class="keywordflow">return</span> _isup &gt;= minsup;
<a name="l00134"></a>00134   }
<a name="l00135"></a>00135 
<a name="l00136"></a>00136   <span class="keywordtype">int</span> get_sup()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> _isup;}
<a name="l00137"></a>00137 
<a name="l00138"></a>00138   <span class="keywordtype">void</span> incr_isup() { _isup++;}
<a name="l00139"></a>00139 
<a name="l00140"></a>00140   <span class="keywordtype">void</span> incr_esup() { _esup++;}
<a name="l00141"></a>00141 
<a name="l00142"></a>00142   <span class="keywordtype">void</span> set_vals(<span class="keyword">const</span> <a class="code" href="classpattern__support.html">pattern_support</a>&lt;proplist&lt;Fk_Fk, proplist&lt;vert_mine, <a class="code" href="classproplist.html">proplist&lt;induced, T&gt;</a> &gt; &gt; &gt;* <span class="keyword">const</span>&amp; s) {
<a name="l00143"></a>00143     _esup=s-&gt;_esup; _isup=s-&gt;_isup;
<a name="l00144"></a>00144   }
<a name="l00145"></a>00145 
<a name="l00146"></a>00146   <span class="keywordtype">void</span> set_sup(<span class="keyword">const</span> std::pair&lt;int, int&gt;&amp; s) {
<a name="l00147"></a>00147     _isup=s.first;
<a name="l00148"></a>00148     _esup = s.second;
<a name="l00149"></a>00149   }
<a name="l00150"></a>00150 
<a name="l00151"></a>00151   <span class="comment">// friend extraction</span>
<a name="l00152"></a>00152   <span class="keyword">friend</span> std::ostream&amp; operator&lt;&lt; &lt;&gt;(std::ostream&amp;, <span class="keyword">const</span> <a class="code" href="classpattern__support.html">pattern_support</a>&lt;proplist&lt;Fk_Fk, proplist&lt;vert_mine, <a class="code" href="classproplist.html">proplist&lt;induced, T &gt;</a> &gt; &gt; &gt;&amp;);
<a name="l00153"></a>00153 
<a name="l00154"></a>00154  <span class="keyword">private</span>:
<a name="l00155"></a>00155   <span class="keywordtype">int</span> _isup; <span class="comment">//induced support</span>
<a name="l00156"></a>00156   <span class="keywordtype">int</span> _esup; <span class="comment">//ONLY embedded support</span>
<a name="l00157"></a>00157 }; <span class="comment">//end pattern_support for induced</span>
<a name="l00158"></a>00158 
<a name="l00159"></a>00159 <span class="preprocessor">#endif</span>
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