classinput__output__manager.html

APRIOR算法的源程序.希望对大家有用,谁有FP-GROWTH算法的程序请给我发一份,谢谢[e-mail]

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Reads in one transaction from the basketfile. 
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<dl compact><dt><b>Parameters:</b></dt><dd>
  <table border="0" cellspacing="2" cellpadding="0">
    <tr><td valign="top"></td><td valign="top"><em>basket</em>&nbsp;</td><td>The basket that will be filled with the next row of the file. </td></tr>
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<dl compact><dt><b>Returns:</b></dt><dd>0 if the end of file is reached, otherwise 1; </dd></dl>

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Definition at line <a class="el" href="Input__Output__Manager_8cpp-source.html#l00027">27</a> of file <a class="el" href="Input__Output__Manager_8cpp-source.html">Input_Output_Manager.cpp</a>.
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References <a class="el" href="Input__Output__Manager_8hpp-source.html#l00067">basket_file</a>, and <a class="el" href="common_8hpp-source.html#l00022">itemtype</a>.
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Referenced by <a class="el" href="Input__Output__Manager_8cpp-source.html#l00059">find_frequent_items()</a>, and <a class="el" href="Apriori_8cpp-source.html#l00021">Apriori::support()</a>.    </td>
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<a class="anchor" name="a6" doxytag="Input_Output_Manager::rewind"></a><p>
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          <td class="md" nowrap valign="top">void Input_Output_Manager::rewind           </td>
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Definition at line <a class="el" href="Input__Output__Manager_8cpp-source.html#l00152">152</a> of file <a class="el" href="Input__Output__Manager_8cpp-source.html">Input_Output_Manager.cpp</a>.
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References <a class="el" href="Input__Output__Manager_8hpp-source.html#l00067">basket_file</a>.    </td>
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<a class="anchor" name="a4" doxytag="Input_Output_Manager::write_out_basket"></a><p>
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          <td class="md" nowrap valign="top">void Input_Output_Manager::write_out_basket           </td>
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          <td class="md" nowrap valign="top">const set&lt; <a class="el" href="common_8hpp.html#a0">itemtype</a> &gt; &amp;&nbsp;</td>
          <td class="mdname1" valign="top" nowrap> <em>itemset</em>          </td>
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Writes out an itemset to the output file. 
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Definition at line <a class="el" href="Input__Output__Manager_8cpp-source.html#l00128">128</a> of file <a class="el" href="Input__Output__Manager_8cpp-source.html">Input_Output_Manager.cpp</a>.
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References <a class="el" href="Input__Output__Manager_8hpp-source.html#l00080">new_code_inverse</a>.    </td>
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<a class="anchor" name="a5" doxytag="Input_Output_Manager::write_out_basket_and_counter"></a><p>
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          <td class="md" nowrap valign="top">void Input_Output_Manager::write_out_basket_and_counter           </td>
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          <td class="md" nowrap valign="top">const set&lt; <a class="el" href="common_8hpp.html#a0">itemtype</a> &gt; &amp;&nbsp;</td>
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          <td class="md" nowrap>const <a class="el" href="common_8hpp.html#a1">countertype</a>&nbsp;</td>
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Writes out an itemset and its counter to the output file. 
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Definition at line <a class="el" href="Input__Output__Manager_8cpp-source.html#l00138">138</a> of file <a class="el" href="Input__Output__Manager_8cpp-source.html">Input_Output_Manager.cpp</a>.
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References <a class="el" href="Input__Output__Manager_8hpp-source.html#l00080">new_code_inverse</a>.
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Referenced by <a class="el" href="Apriori__Trie_8cpp-source.html#l00121">Apriori_Trie::candidate_generation_assist()</a>.    </td>
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<hr><h2>Member Data Documentation</h2>
<a class="anchor" name="r0" doxytag="Input_Output_Manager::basket_file"></a><p>
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          <td class="md" nowrap valign="top">ifstream&amp; <a class="el" href="classInput__Output__Manager.html#r0">Input_Output_Manager::basket_file</a><code> [private]</code>          </td>
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The file that contain the transactions (i.e baskets). 
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Definition at line <a class="el" href="Input__Output__Manager_8hpp-source.html#l00067">67</a> of file <a class="el" href="Input__Output__Manager_8hpp-source.html">Input_Output_Manager.hpp</a>.
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Referenced by <a class="el" href="Input__Output__Manager_8cpp-source.html#l00027">read_in_a_line()</a>, and <a class="el" href="Input__Output__Manager_8cpp-source.html#l00152">rewind()</a>.    </td>
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<a class="anchor" name="r1" doxytag="Input_Output_Manager::new_code"></a><p>
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          <td class="md" nowrap valign="top">vector&lt;<a class="el" href="common_8hpp.html#a0">itemtype</a>&gt; <a class="el" href="classInput__Output__Manager.html#r1">Input_Output_Manager::new_code</a><code> [private]</code>          </td>
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The new codes of the frequent items. 
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if new_code[i] is 0, then i is not frequent, otherwise the new code of item i is new_code[i]-1. 
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Definition at line <a class="el" href="Input__Output__Manager_8hpp-source.html#l00074">74</a> of file <a class="el" href="Input__Output__Manager_8hpp-source.html">Input_Output_Manager.hpp</a>.
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Referenced by <a class="el" href="Input__Output__Manager_8cpp-source.html#l00118">basket_recode()</a>, and <a class="el" href="Input__Output__Manager_8cpp-source.html#l00059">find_frequent_items()</a>.    </td>
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<a class="anchor" name="r2" doxytag="Input_Output_Manager::new_code_inverse"></a><p>
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          <td class="md" nowrap valign="top">vector&lt;<a class="el" href="common_8hpp.html#a0">itemtype</a>&gt; <a class="el" href="classInput__Output__Manager.html#r2">Input_Output_Manager::new_code_inverse</a><code> [private]</code>          </td>
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The inverse of new_code vector. 
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new_code_inverse[new_code[i]-1]=i if i is a frequent item. 
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Definition at line <a class="el" href="Input__Output__Manager_8hpp-source.html#l00080">80</a> of file <a class="el" href="Input__Output__Manager_8hpp-source.html">Input_Output_Manager.hpp</a>.
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Referenced by <a class="el" href="Input__Output__Manager_8cpp-source.html#l00059">find_frequent_items()</a>, <a class="el" href="Input__Output__Manager_8cpp-source.html#l00128">write_out_basket()</a>, and <a class="el" href="Input__Output__Manager_8cpp-source.html#l00138">write_out_basket_and_counter()</a>.    </td>
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<hr>The documentation for this class was generated from the following files:<ul>
<li><a class="el" href="Input__Output__Manager_8hpp-source.html">Input_Output_Manager.hpp</a><li><a class="el" href="Input__Output__Manager_8cpp-source.html">Input_Output_Manager.cpp</a></ul>
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