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  7. DecisionTree

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  88. <H2>

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  89. <FONT SIZE="-1">

    90. 

  90. aima.core.learning.inductive</FONT>

    91. 

  91. <BR>

    92. 

  92. Class DecisionTree</H2>

    93. 

  93. <PRE>

    94. 

  94. java.lang.Object

    95. 

  95.   <IMG SRC="../../../../resources/inherit.gif" ALT="extended by "><B>aima.core.learning.inductive.DecisionTree</B>

    96. 

  96. </PRE>

    97. 

  97. <DL>

    98. 

  98. <DT><B>Direct Known Subclasses:</B> <DD><A HREF="../../../../aima/core/learning/inductive/ConstantDecisonTree.html" title="class in aima.core.learning.inductive">ConstantDecisonTree</A></DD>

    99. 

  99. </DL>

    100. 

  100. <HR>

    101. 

  101. <DL>

    102. 

  102. <DT><PRE>public class <B>DecisionTree</B><DT>extends java.lang.Object</DL>

    103. 

  103. </PRE>

    104. 

  104. 

    105. 

  105. <P>

    106. 

  106. <DL>

    107. 

  107. <DT><B>Author:</B></DT>

    108. 

  108.   <DD>Ravi Mohan</DD>

    109. 

  109. </DL>

    110. 

  110. <HR>

    111. 

  111. 

    112. 

  112. <P>

    113. 

  113. 

    114. 

  114. <!-- ======== CONSTRUCTOR SUMMARY ======== -->

    115. 

  115. 

    116. 

  116. <A NAME="constructor_summary"><!-- --></A>

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  117. <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">

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  118. <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">

    119. 

  119. <TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">

    120. 

  120. <B>Constructor Summary</B></FONT></TH>

    121. 

  121. </TR>

    122. 

  122. <TR BGCOLOR="white" CLASS="TableRowColor">

    123. 

  123. <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">

    124. 

  124. <CODE>protected </CODE></FONT></TD>

    125. 

  125. <TD><CODE><B><A HREF="../../../../aima/core/learning/inductive/DecisionTree.html#DecisionTree()">DecisionTree</A></B>()</CODE>

    126. 

  126. 

    127. 

  127. <BR>

    128. 

  128. &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>

    129. 

  129. </TR>

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  130. <TR BGCOLOR="white" CLASS="TableRowColor">

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  131. <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">

    132. 

  132. <CODE>&nbsp;</CODE></FONT></TD>

    133. 

  133. <TD><CODE><B><A HREF="../../../../aima/core/learning/inductive/DecisionTree.html#DecisionTree(java.lang.String)">DecisionTree</A></B>(java.lang.String&nbsp;attributeName)</CODE>

    134. 

  134. 

    135. 

  135. <BR>

    136. 

  136. &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>

    137. 

  137. </TR>

    138. 

  138. </TABLE>

    139. 

  139. &nbsp;

    140. 

  140. <!-- ========== METHOD SUMMARY =========== -->

    141. 

  141. 

    142. 

  142. <A NAME="method_summary"><!-- --></A>

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  143. <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">

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  144. <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">

    145. 

  145. <TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">

    146. 

  146. <B>Method Summary</B></FONT></TH>

    147. 

  147. </TR>

    148. 

  148. <TR BGCOLOR="white" CLASS="TableRowColor">

    149. 

  149. <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">

    150. 

  150. <CODE>&nbsp;void</CODE></FONT></TD>

    151. 

  151. <TD><CODE><B><A HREF="../../../../aima/core/learning/inductive/DecisionTree.html#addLeaf(java.lang.String, java.lang.String)">addLeaf</A></B>(java.lang.String&nbsp;attributeValue,

    152. 

  152.         java.lang.String&nbsp;decision)</CODE>

    153. 

  153. 

    154. 

  154. <BR>

    155. 

  155. &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>

    156. 

  156. </TR>

    157. 

  157. <TR BGCOLOR="white" CLASS="TableRowColor">

    158. 

  158. <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">

    159. 

  159. <CODE>&nbsp;void</CODE></FONT></TD>

    160. 

  160. <TD><CODE><B><A HREF="../../../../aima/core/learning/inductive/DecisionTree.html#addNode(java.lang.String, aima.core.learning.inductive.DecisionTree)">addNode</A></B>(java.lang.String&nbsp;attributeValue,

    161. 

  161.         <A HREF="../../../../aima/core/learning/inductive/DecisionTree.html" title="class in aima.core.learning.inductive">DecisionTree</A>&nbsp;tree)</CODE>

    162. 

  162. 

    163. 

  163. <BR>

    164. 

  164. &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>

    165. 

  165. </TR>

    166. 

  166. <TR BGCOLOR="white" CLASS="TableRowColor">

    167. 

  167. <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">

    168. 

  168. <CODE>&nbsp;java.lang.String</CODE></FONT></TD>

    169. 

  169. <TD><CODE><B><A HREF="../../../../aima/core/learning/inductive/DecisionTree.html#getAttributeName()">getAttributeName</A></B>()</CODE>

    170. 

  170. 

    171. 

  171. <BR>

    172. 

  172. &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>

    173. 

  173. </TR>

    174. 

  174. <TR BGCOLOR="white" CLASS="TableRowColor">

    175. 

  175. <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">

    176. 

  176. <CODE>static&nbsp;<A HREF="../../../../aima/core/learning/inductive/DecisionTree.html" title="class in aima.core.learning.inductive">DecisionTree</A></CODE></FONT></TD>

    177. 

  177. <TD><CODE><B><A HREF="../../../../aima/core/learning/inductive/DecisionTree.html#getStumpFor(aima.core.learning.framework.DataSet, java.lang.String, java.lang.String, java.lang.String, java.util.List, java.lang.String)">getStumpFor</A></B>(<A HREF="../../../../aima/core/learning/framework/DataSet.html" title="class in aima.core.learning.framework">DataSet</A>&nbsp;ds,

    178. 

  178.             java.lang.String&nbsp;attributeName,

    179. 

  179.             java.lang.String&nbsp;attributeValue,

    180. 

  180.             java.lang.String&nbsp;returnValueIfMatched,

    181. 

  181.             java.util.List&lt;java.lang.String&gt;&nbsp;unmatchedValues,

    182. 

  182.             java.lang.String&nbsp;returnValueIfUnmatched)</CODE>

    183. 

  183. 

    184. 

  184. <BR>

    185. 

  185. &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>

    186. 

  186. </TR>

    187. 

  187. <TR BGCOLOR="white" CLASS="TableRowColor">

    188. 

  188. <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">

    189. 

  189. <CODE>static&nbsp;java.util.List&lt;<A HREF="../../../../aima/core/learning/inductive/DecisionTree.html" title="class in aima.core.learning.inductive">DecisionTree</A>&gt;</CODE></FONT></TD>

    190. 

  190. <TD><CODE><B><A HREF="../../../../aima/core/learning/inductive/DecisionTree.html#getStumpsFor(aima.core.learning.framework.DataSet, java.lang.String, java.lang.String)">getStumpsFor</A></B>(<A HREF="../../../../aima/core/learning/framework/DataSet.html" title="class in aima.core.learning.framework">DataSet</A>&nbsp;ds,

    191. 

  191.              java.lang.String&nbsp;returnValueIfMatched,

    192. 

  192.              java.lang.String&nbsp;returnValueIfUnmatched)</CODE>

    193. 

  193. 

    194. 

  194. <BR>

    195. 

  195. &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>

    196. 

  196. </TR>

    197. 

  197. <TR BGCOLOR="white" CLASS="TableRowColor">

    198. 

  198. <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">

    199. 

  199. <CODE>&nbsp;java.lang.Object</CODE></FONT></TD>

    200. 

  200. <TD><CODE><B><A HREF="../../../../aima/core/learning/inductive/DecisionTree.html#predict(aima.core.learning.framework.Example)">predict</A></B>(<A HREF="../../../../aima/core/learning/framework/Example.html" title="class in aima.core.learning.framework">Example</A>&nbsp;e)</CODE>

    201. 

  201. 

    202. 

  202. <BR>

    203. 

  203. &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>

    204. 

  204. </TR>

    205. 

  205. <TR BGCOLOR="white" CLASS="TableRowColor">

    206. 

  206. <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">

    207. 

  207. <CODE>&nbsp;java.lang.String</CODE></FONT></TD>

    208. 

  208. <TD><CODE><B><A HREF="../../../../aima/core/learning/inductive/DecisionTree.html#toString()">toString</A></B>()</CODE>

    209. 

  209. 

    210. 

  210. <BR>

    211. 

  211. &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>

    212. 

  212. </TR>

    213. 

  213. <TR BGCOLOR="white" CLASS="TableRowColor">

    214. 

  214. <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">

    215. 

  215. <CODE>&nbsp;java.lang.String</CODE></FONT></TD>

    216. 

  216. <TD><CODE><B><A HREF="../../../../aima/core/learning/inductive/DecisionTree.html#toString(int, java.lang.StringBuffer)">toString</A></B>(int&nbsp;depth,

    217. 

  217.          java.lang.StringBuffer&nbsp;buf)</CODE>

    218. 

  218. 

    219. 

  219. <BR>

    220. 

  220. &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>

    221. 

  221. </TR>

    222. 

  222. </TABLE>

    223. 

  223. &nbsp;<A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A>

    224. 

  224. <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">

    225. 

  225. <TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">

    226. 

  226. <TH ALIGN="left"><B>Methods inherited from class java.lang.Object</B></TH>

    227. 

  227. </TR>

    228. 

  228. <TR BGCOLOR="white" CLASS="TableRowColor">

    229. 

  229. <TD><CODE>clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait</CODE></TD>

    230. 

  230. </TR>

    231. 

  231. </TABLE>

    232. 

  232. &nbsp;

    233. 

  233. <P>

    234. 

  234. 

    235. 

  235. <!-- ========= CONSTRUCTOR DETAIL ======== -->

    236. 

  236. 

    237. 

  237. <A NAME="constructor_detail"><!-- --></A>

    238. 

  238. <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">

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  239. <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">

    240. 

  240. <TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">

    241. 

  241. <B>Constructor Detail</B></FONT></TH>

    242. 

  242. </TR>

    243. 

  243. </TABLE>

    244. 

  244. 

    245. 

  245. <A NAME="DecisionTree()"><!-- --></A><H3>

    246. 

  246. DecisionTree</H3>

    247. 

  247. <PRE>

    248. 

  248. protected <B>DecisionTree</B>()</PRE>

    249. 

  249. <DL>

    250. 

  250. </DL>

    251. 

  251. <HR>

    252. 

  252. 

    253. 

  253. <A NAME="DecisionTree(java.lang.String)"><!-- --></A><H3>

    254. 

  254. DecisionTree</H3>

    255. 

  255. <PRE>

    256. 

  256. public <B>DecisionTree</B>(java.lang.String&nbsp;attributeName)</PRE>

    257. 

  257. <DL>

    258. 

  258. </DL>

    259. 

  259. 

    260. 

  260. <!-- ============ METHOD DETAIL ========== -->

    261. 

  261. 

    262. 

  262. <A NAME="method_detail"><!-- --></A>

    263. 

  263. <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">

    264. 

  264. <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">

    265. 

  265. <TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">

    266. 

  266. <B>Method Detail</B></FONT></TH>

    267. 

  267. </TR>

    268. 

  268. </TABLE>

    269. 

  269. 

    270. 

  270. <A NAME="addLeaf(java.lang.String, java.lang.String)"><!-- --></A><H3>

    271. 

  271. addLeaf</H3>

    272. 

  272. <PRE>

    273. 

  273. public void <B>addLeaf</B>(java.lang.String&nbsp;attributeValue,

    274. 

  274.                     java.lang.String&nbsp;decision)</PRE>

    275. 

  275. <DL>

    276. 

  276. <DD><DL>

    277. 

  277. </DL>

    278. 

  278. </DD>

    279. 

  279. </DL>

    280. 

  280. <HR>

    281. 

  281. 

    282. 

  282. <A NAME="addNode(java.lang.String, aima.core.learning.inductive.DecisionTree)"><!-- --></A><H3>

    283. 

  283. addNode</H3>

    284. 

  284. <PRE>

    285. 

  285. public void <B>addNode</B>(java.lang.String&nbsp;attributeValue,

    286. 

  286.                     <A HREF="../../../../aima/core/learning/inductive/DecisionTree.html" title="class in aima.core.learning.inductive">DecisionTree</A>&nbsp;tree)</PRE>

    287. 

  287. <DL>

    288. 

  288. <DD><DL>

    289. 

  289. </DL>

    290. 

  290. </DD>

    291. 

  291. </DL>

    292. 

  292. <HR>

    293. 

  293. 

    294. 

  294. <A NAME="predict(aima.core.learning.framework.Example)"><!-- --></A><H3>

    295. 

  295. predict</H3>

    296. 

  296. <PRE>

    297. 

  297. public java.lang.Object <B>predict</B>(<A HREF="../../../../aima/core/learning/framework/Example.html" title="class in aima.core.learning.framework">Example</A>&nbsp;e)</PRE>

    298. 

  298. <DL>

    299. 

  299. <DD><DL>

    300. 

  300. </DL>

    301. 

  301. </DD>

    302. 

  302. </DL>

    303. 

  303. <HR>

    304. 

  304. 

    305. 

  305. <A NAME="getStumpFor(aima.core.learning.framework.DataSet, java.lang.String, java.lang.String, java.lang.String, java.util.List, java.lang.String)"><!-- --></A><H3>

    306. 

  306. getStumpFor</H3>

    307. 

  307. <PRE>

    308. 

  308. public static <A HREF="../../../../aima/core/learning/inductive/DecisionTree.html" title="class in aima.core.learning.inductive">DecisionTree</A> <B>getStumpFor</B>(<A HREF="../../../../aima/core/learning/framework/DataSet.html" title="class in aima.core.learning.framework">DataSet</A>&nbsp;ds,

    309. 

  309.                                        java.lang.String&nbsp;attributeName,

    310. 

  310.                                        java.lang.String&nbsp;attributeValue,

    311. 

  311.                                        java.lang.String&nbsp;returnValueIfMatched,

    312. 

  312.                                        java.util.List&lt;java.lang.String&gt;&nbsp;unmatchedValues,

    313. 

  313.                                        java.lang.String&nbsp;returnValueIfUnmatched)</PRE>

    314. 

  314. <DL>

    315. 

  315. <DD><DL>

    316. 

  316. </DL>

    317. 

  317. </DD>

    318. 

  318. </DL>

    319. 

  319. <HR>

    320. 

  320. 

    321. 

  321. <A NAME="getStumpsFor(aima.core.learning.framework.DataSet, java.lang.String, java.lang.String)"><!-- --></A><H3>

    322. 

  322. getStumpsFor</H3>

    323. 

  323. <PRE>

    324. 

  324. public static java.util.List&lt;<A HREF="../../../../aima/core/learning/inductive/DecisionTree.html" title="class in aima.core.learning.inductive">DecisionTree</A>&gt; <B>getStumpsFor</B>(<A HREF="../../../../aima/core/learning/framework/DataSet.html" title="class in aima.core.learning.framework">DataSet</A>&nbsp;ds,

    325. 

  325.                                                         java.lang.String&nbsp;returnValueIfMatched,

    326. 

  326.                                                         java.lang.String&nbsp;returnValueIfUnmatched)</PRE>

    327. 

  327. <DL>

    328. 

  328. <DD><DL>

    329. 

  329. </DL>

    330. 

  330. </DD>

    331. 

  331. </DL>

    332. 

  332. <HR>

    333. 

  333. 

    334. 

  334. <A NAME="getAttributeName()"><!-- --></A><H3>

    335. 

  335. getAttributeName</H3>

    336. 

  336. <PRE>

    337. 

  337. public java.lang.String <B>getAttributeName</B>()</PRE>

    338. 

  338. <DL>

    339. 

  339. <DD><DL>

    340. 

  340. 

    341. 

  341. <DT><B>Returns:</B><DD>Returns the attributeName.</DL>

    342. 

  342. </DD>

    343. 

  343. </DL>

    344. 

  344. <HR>

    345. 

  345. 

    346. 

  346. <A NAME="toString()"><!-- --></A><H3>

    347. 

  347. toString</H3>

    348. 

  348. <PRE>

    349. 

  349. public java.lang.String <B>toString</B>()</PRE>

    350. 

  350. <DL>

    351. 

  351. <DD><DL>

    352. 

  352. <DT><B>Overrides:</B><DD><CODE>toString</CODE> in class <CODE>java.lang.Object</CODE></DL>

    353. 

  353. </DD>

    354. 

  354. <DD><DL>

    355. 

  355. </DL>

    356. 

  356. </DD>

    357. 

  357. </DL>

    358. 

  358. <HR>

    359. 

  359. 

    360. 

  360. <A NAME="toString(int, java.lang.StringBuffer)"><!-- --></A><H3>

    361. 

  361. toString</H3>

    362. 

  362. <PRE>

    363. 

  363. public java.lang.String <B>toString</B>(int&nbsp;depth,

    364. 

  364.                                  java.lang.StringBuffer&nbsp;buf)</PRE>

    365. 

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