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    42. 

  42.         Package&nbsp;tagger ::
    43. 

  43.         Module&nbsp;extras
    44. 

  44.       </span>
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    59. 

  59. <!-- ==================== MODULE DESCRIPTION ==================== -->
    60. 

  60. <h1 class="epydoc">Module extras</h1><p class="nomargin-top"><span class="codelink"><a href="tagger.extras-pysrc.html">source&nbsp;code</a></span></p>
    61. 

  61. <!-- ==================== CLASSES ==================== -->
    62. 

  62. <a name="section-Classes"></a>
    63. 

  63. <table class="summary" border="1" cellpadding="3"
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    69. 

  69.         <td align="left"><span class="table-header">Classes</span></td>
    70. 

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  78. <tr>
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  79.     <td width="15%" align="right" valign="top" class="summary">
    80. 

  80.       <span class="summary-type">&nbsp;</span>
    81. 

  81.     </td><td class="summary">
    82. 

  82.         <a href="tagger.extras.UnicodeReader-class.html" class="summary-name">UnicodeReader</a><br />
    83. 

  83.       Reader subclass that converts Unicode strings to a close ASCII 
    84. 

  84.         representation
    85. 

  85.     </td>
    86. 

  86.   </tr>
    87. 

  87. <tr>
    88. 

  88.     <td width="15%" align="right" valign="top" class="summary">
    89. 

  89.       <span class="summary-type">&nbsp;</span>
    90. 

  90.     </td><td class="summary">
    91. 

  91.         <a href="tagger.extras.HTMLReader-class.html" class="summary-name">HTMLReader</a><br />
    92. 

  92.       Reader subclass that can parse HTML code from the input
    93. 

  93.     </td>
    94. 

  94.   </tr>
    95. 

  95. <tr>
    96. 

  96.     <td width="15%" align="right" valign="top" class="summary">
    97. 

  97.       <span class="summary-type">&nbsp;</span>
    98. 

  98.     </td><td class="summary">
    99. 

  99.         <a href="tagger.extras.SimpleReader-class.html" class="summary-name">SimpleReader</a><br />
    100. 

  100.       Reader subclass that doesn't perform any advanced analysis of the 
    101. 

  101.         text
    102. 

  102.     </td>
    103. 

  103.   </tr>
    104. 

  104. <tr>
    105. 

  105.     <td width="15%" align="right" valign="top" class="summary">
    106. 

  106.       <span class="summary-type">&nbsp;</span>
    107. 

  107.     </td><td class="summary">
    108. 

  108.         <a href="tagger.extras.FastStemmer-class.html" class="summary-name">FastStemmer</a><br />
    109. 

  109.       Stemmer subclass that uses a much faster, but less correct 
    110. 

  110.         algorithm
    111. 

  111.     </td>
    112. 

  112.   </tr>
    113. 

  113. <tr>
    114. 

  114.     <td width="15%" align="right" valign="top" class="summary">
    115. 

  115.       <span class="summary-type">&nbsp;</span>
    116. 

  116.     </td><td class="summary">
    117. 

  117.         <a href="tagger.extras.NaiveRater-class.html" class="summary-name">NaiveRater</a><br />
    118. 

  118.       Rater subclass that jusk ranks single-word tags by their frequency 
    119. 

  119.         and weight
    120. 

  120.     </td>
    121. 

  121.   </tr>
    122. 

  122. </table>
    123. 

  123. <!-- ==================== FUNCTIONS ==================== -->
    124. 

  124. <a name="section-Functions"></a>
    125. 

  125. <table class="summary" border="1" cellpadding="3"
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  126.        cellspacing="0" width="100%" bgcolor="white">
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  130.       <tr valign="top">
    131. 

  131.         <td align="left"><span class="table-header">Functions</span></td>
    132. 

  132.         <td align="right" valign="top"
    133. 

  133.          ><span class="options">[<a href="#section-Functions"
    134. 

  134.          class="privatelink" onclick="toggle_private();"
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  135.          >hide private</a>]</span></td>
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  141.     <td width="15%" align="right" valign="top" class="summary">
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  142.       <span class="summary-type">&nbsp;</span>
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  143.     </td><td class="summary">
    144. 

  144.       <table width="100%" cellpadding="0" cellspacing="0" border="0">
    145. 

  145.         <tr>
    146. 

  146.           <td><span class="summary-sig"><a href="tagger.extras-module.html#build_dict_from_nltk" class="summary-sig-name">build_dict_from_nltk</a>(<span class="summary-sig-arg">output_file</span>,
    147. 

  147.         <span class="summary-sig-arg">corpus</span>=<span class="summary-sig-default">None</span>,
    148. 

  148.         <span class="summary-sig-arg">stopwords</span>=<span class="summary-sig-default">None</span>,
    149. 

  149.         <span class="summary-sig-arg">stemmer</span>=<span class="summary-sig-default">Stemmer()</span>,
    150. 

  150.         <span class="summary-sig-arg">measure</span>=<span class="summary-sig-default"><code class="variable-quote">'</code><code class="variable-string">IDF</code><code class="variable-quote">'</code></span>,
    151. 

  151.         <span class="summary-sig-arg">verbose</span>=<span class="summary-sig-default">False</span>)</span></td>
    152. 

  152.           <td align="right" valign="top">
    153. 

  153.             <span class="codelink"><a href="tagger.extras-pysrc.html#build_dict_from_nltk">source&nbsp;code</a></span>
    154. 

  154.             
    155. 

  155.           </td>
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  156.         </tr>
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  157.       </table>
    158. 

  158.       
    159. 

  159.     </td>
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  160.   </tr>
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    162. 

  162. <!-- ==================== VARIABLES ==================== -->
    163. 

  163. <a name="section-Variables"></a>
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    170. 

  170.         <td align="left"><span class="table-header">Variables</span></td>
    171. 

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  172.          ><span class="options">[<a href="#section-Variables"
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  180.     <td width="15%" align="right" valign="top" class="summary">
    181. 

  181.       <span class="summary-type">&nbsp;</span>
    182. 

  182.     </td><td class="summary">
    183. 

  183.         <a name="__package__"></a><span class="summary-name">__package__</span> = <code title="'tagger'"><code class="variable-quote">'</code><code class="variable-string">tagger</code><code class="variable-quote">'</code></code>
    184. 

  184.     </td>
    185. 

  185.   </tr>
    186. 

  186. </table>
    187. 

  187. <!-- ==================== FUNCTION DETAILS ==================== -->
    188. 

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    195. 

  195.         <td align="left"><span class="table-header">Function Details</span></td>
    196. 

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    197. 

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    205. 

  205. <a name="build_dict_from_nltk"></a>
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    212. 

  212.   <h3 class="epydoc"><span class="sig"><span class="sig-name">build_dict_from_nltk</span>(<span class="sig-arg">output_file</span>,
    213. 

  213.         <span class="sig-arg">corpus</span>=<span class="sig-default">None</span>,
    214. 

  214.         <span class="sig-arg">stopwords</span>=<span class="sig-default">None</span>,
    215. 

  215.         <span class="sig-arg">stemmer</span>=<span class="sig-default">Stemmer()</span>,
    216. 

  216.         <span class="sig-arg">measure</span>=<span class="sig-default"><code class="variable-quote">'</code><code class="variable-string">IDF</code><code class="variable-quote">'</code></span>,
    217. 

  217.         <span class="sig-arg">verbose</span>=<span class="sig-default">False</span>)</span>
    218. 

  218.   </h3>
    219. 

  219.   </td><td align="right" valign="top"
    220. 

  220.     ><span class="codelink"><a href="tagger.extras-pysrc.html#build_dict_from_nltk">source&nbsp;code</a></span>&nbsp;
    221. 

  221.     </td>
    222. 

  222.   </tr></table>
    223. 

  223.   
    224. 

  224.   
    225. 

  225.   <dl class="fields">
    226. 

  226.     <dt>Parameters:</dt>
    227. 

  227.     <dd><ul class="nomargin-top">
    228. 

  228.         <li><strong class="pname"><code>output_file</code></strong> - the name of the file where the dictionary should be saved</li>
    229. 

  229.         <li><strong class="pname"><code>corpus</code></strong> - the NLTK corpus to use (defaults to nltk.corpus.reuters)</li>
    230. 

  230.         <li><strong class="pname"><code>stopwords</code></strong> - a list of (not stemmed) stopwords (defaults to 
    231. 

  231.           nltk.corpus.reuters.words('stopwords'))</li>
    232. 

  232.         <li><strong class="pname"><code>stemmer</code></strong> - the <a href="tagger.tagger.Stemmer-class.html" 
    233. 

  233.           class="link">Stemmer</a> object to be used</li>
    234. 

  234.         <li><strong class="pname"><code>measure</code></strong> - the measure used to compute the weights ('IDF' i.e. 'inverse 
    235. 

  235.           document frequency' or 'ICF' i.e. 'inverse collection frequency';
    236. 

  236.           defaults to 'IDF')</li>
    237. 

  237.         <li><strong class="pname"><code>verbose</code></strong> - whether information on the progress should be printed on screen</li>
    238. 

  238.     </ul></dd>
    239. 

  239.   </dl>
    240. 

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