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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><!--NewPage--><HTML><HEAD><!-- Generated by javadoc (build 1.5.0_10) on Fri Jan 26 16:34:46 NZDT 2007 --><TITLE>DecisionTable.hashKey</TITLE><META NAME="keywords" CONTENT="weka.classifiers.rules.DecisionTable.hashKey class"><LINK REL ="stylesheet" TYPE="text/css" HREF="../../../stylesheet.css" TITLE="Style"><SCRIPT type="text/javascript">function windowTitle(){ parent.document.title="DecisionTable.hashKey";}</SCRIPT><NOSCRIPT></NOSCRIPT></HEAD><BODY BGCOLOR="white" onload="windowTitle();"><!-- ========= START OF TOP NAVBAR ======= --><A NAME="navbar_top"><!-- --></A><A HREF="#skip-navbar_top" title="Skip navigation links"></A><TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0" SUMMARY=""><TR><TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"><A NAME="navbar_top_firstrow"><!-- --></A><TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3" SUMMARY=""> <TR ALIGN="center" 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Classes</B></A></NOSCRIPT></FONT></TD></TR><TR><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> SUMMARY: NESTED | FIELD | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#method_summary">METHOD</A></FONT></TD><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">DETAIL: FIELD | <A HREF="#constructor_detail">CONSTR</A> | <A HREF="#method_detail">METHOD</A></FONT></TD></TR></TABLE><A NAME="skip-navbar_top"></A><!-- ========= END OF TOP NAVBAR ========= --><HR><!-- ======== START OF CLASS DATA ======== --><H2><FONT SIZE="-1">weka.classifiers.rules</FONT><BR>Class DecisionTable.hashKey</H2><PRE>java.lang.Object <IMG SRC="../../../resources/inherit.gif" ALT="extended by "><B>weka.classifiers.rules.DecisionTable.hashKey</B></PRE><DL><DT><B>All Implemented Interfaces:</B> <DD>java.io.Serializable</DD></DL><DL><DT><B>Enclosing class:</B><DD><A HREF="../../../weka/classifiers/rules/DecisionTable.html" title="class in weka.classifiers.rules">DecisionTable</A></DD></DL><HR><DL><DT><PRE>public static class <B>DecisionTable.hashKey</B><DT>extends java.lang.Object<DT>implements java.io.Serializable</DL></PRE><P>Class providing keys to the hash table<P><P><DL><DT><B>See Also:</B><DD><A HREF="../../../serialized-form.html#weka.classifiers.rules.DecisionTable.hashKey">Serialized Form</A></DL><HR><P><!-- ======== CONSTRUCTOR SUMMARY ======== --><A NAME="constructor_summary"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"><B>Constructor Summary</B></FONT></TH></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../../weka/classifiers/rules/DecisionTable.hashKey.html#DecisionTable.hashKey(double[])">DecisionTable.hashKey</A></B>(double[] t)</CODE><BR> Constructor for a hashKey</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../../weka/classifiers/rules/DecisionTable.hashKey.html#DecisionTable.hashKey(weka.core.Instance, int, boolean)">DecisionTable.hashKey</A></B>(<A HREF="../../../weka/core/Instance.html" title="class in weka.core">Instance</A> t, int numAtts, boolean ignoreClass)</CODE><BR> Constructor for a hashKey</TD></TR></TABLE> <!-- ========== METHOD SUMMARY =========== --><A NAME="method_summary"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"><B>Method Summary</B></FONT></TH></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> boolean</CODE></FONT></TD><TD><CODE><B><A HREF="../../../weka/classifiers/rules/DecisionTable.hashKey.html#equals(java.lang.Object)">equals</A></B>(java.lang.Object b)</CODE><BR> Tests if two instances are equal</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> int</CODE></FONT></TD><TD><CODE><B><A HREF="../../../weka/classifiers/rules/DecisionTable.hashKey.html#hashCode()">hashCode</A></B>()</CODE><BR> Calculates a hash code</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../weka/classifiers/rules/DecisionTable.hashKey.html#print_hash_code()">print_hash_code</A></B>()</CODE><BR> Prints the hash code</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> java.lang.String</CODE></FONT></TD><TD><CODE><B><A HREF="../../../weka/classifiers/rules/DecisionTable.hashKey.html#toString(weka.core.Instances, int)">toString</A></B>(<A HREF="../../../weka/core/Instances.html" title="class in weka.core">Instances</A> t, int maxColWidth)</CODE><BR> Convert a hash entry to a string</TD></TR></TABLE> <A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TH ALIGN="left"><B>Methods inherited from class java.lang.Object</B></TH></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE>getClass, notify, notifyAll, toString, wait, wait, wait</CODE></TD></TR></TABLE> <P><!-- ========= CONSTRUCTOR DETAIL ======== --><A NAME="constructor_detail"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2"><B>Constructor Detail</B></FONT></TH></TR></TABLE><A NAME="DecisionTable.hashKey(weka.core.Instance, int, boolean)"><!-- --></A><H3>DecisionTable.hashKey</H3><PRE>public <B>DecisionTable.hashKey</B>(<A HREF="../../../weka/core/Instance.html" title="class in weka.core">Instance</A> t, int numAtts, boolean ignoreClass) throws java.lang.Exception</PRE><DL><DD>Constructor for a hashKey<P><DL><DT><B>Parameters:</B><DD><CODE>t</CODE> - an instance from which to generate a key<DD><CODE>numAtts</CODE> - the number of attributes<DD><CODE>ignoreClass</CODE> - if true treat the class as a normal attribute<DT><B>Throws:</B><DD><CODE>java.lang.Exception</CODE> - if something goes wrong</DL></DL><HR><A NAME="DecisionTable.hashKey(double[])"><!-- --></A><H3>DecisionTable.hashKey</H3><PRE>public <B>DecisionTable.hashKey</B>(double[] t)</PRE><DL><DD>Constructor for a hashKey<P><DL><DT><B>Parameters:</B><DD><CODE>t</CODE> - an array of feature values</DL></DL><!-- ============ METHOD DETAIL ========== --><A NAME="method_detail"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2"><B>Method Detail</B></FONT></TH></TR></TABLE><A NAME="toString(weka.core.Instances, int)"><!-- --></A><H3>toString</H3><PRE>public java.lang.String <B>toString</B>(<A HREF="../../../weka/core/Instances.html" title="class in weka.core">Instances</A> t, int maxColWidth)</PRE><DL><DD>Convert a hash entry to a string<P><DD><DL></DL></DD><DD><DL><DT><B>Parameters:</B><DD><CODE>t</CODE> - the set of instances<DD><CODE>maxColWidth</CODE> - width to make the fields<DT><B>Returns:</B><DD>string representation of the hash entry</DL></DD></DL><HR><A NAME="hashCode()"><!-- --></A><H3>hashCode</H3><PRE>public int <B>hashCode</B>()</PRE><DL><DD>Calculates a hash code<P><DD><DL><DT><B>Overrides:</B><DD><CODE>hashCode</CODE> in class <CODE>java.lang.Object</CODE></DL></DD><DD><DL><DT><B>Returns:</B><DD>the hash code as an integer</DL></DD></DL><HR><A NAME="equals(java.lang.Object)"><!-- --></A><H3>equals</H3><PRE>public boolean <B>equals</B>(java.lang.Object b)</PRE><DL><DD>Tests if two instances are equal<P><DD><DL><DT><B>Overrides:</B><DD><CODE>equals</CODE> in class <CODE>java.lang.Object</CODE></DL></DD><DD><DL><DT><B>Parameters:</B><DD><CODE>b</CODE> - a key to compare with<DT><B>Returns:</B><DD>true if both objects are equal</DL></DD></DL><HR><A NAME="print_hash_code()"><!-- --></A><H3>print_hash_code</H3><PRE>public void <B>print_hash_code</B>()</PRE><DL><DD>Prints the hash code<P><DD><DL></DL></DD><DD><DL></DL></DD></DL><!-- ========= END OF CLASS DATA ========= --><HR><!-- ======= START OF BOTTOM NAVBAR ====== --><A NAME="navbar_bottom"><!-- --></A><A HREF="#skip-navbar_bottom" title="Skip navigation links"></A><TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0" SUMMARY=""><TR><TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"><A NAME="navbar_bottom_firstrow"><!-- --></A><TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3" SUMMARY=""> <TR ALIGN="center" VALIGN="top"> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../overview-summary.html"><FONT CLASS="NavBarFont1"><B>Overview</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" 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