📄 distribution.html
字号:
<!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 1.4.2_05) on Mon Mar 07 15:27:41 NZDT 2005 --><TITLE>Distribution</TITLE><META NAME="keywords" CONTENT="weka.classifiers.trees.j48.Distribution class"><LINK REL ="stylesheet" TYPE="text/css" HREF="../../../../stylesheet.css" TITLE="Style"><SCRIPT type="text/javascript">function windowTitle(){ parent.document.title="Distribution";}</SCRIPT></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=3 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"><A NAME="navbar_top_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" CLASS="NavBarCell1"> <A HREF="package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A> </TD> <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../index-all.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../../Tutorial.pdf"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="http://www.cs.waikato.ac.nz/ml/weka/index.html"><FONT CLASS="NavBarFont1"><B>Weka's home</B></FONT></A> </TD> </TR></TABLE></TD><TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM></EM></TD></TR><TR><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../../weka/classifiers/trees/j48/ClassifierTree.html" title="class in weka.classifiers.trees.j48"><B>PREV CLASS</B></A> <A HREF="../../../../weka/classifiers/trees/j48/EntropyBasedSplitCrit.html" title="class in weka.classifiers.trees.j48"><B>NEXT CLASS</B></A></FONT></TD><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../../index.html" target="_top"><B>FRAMES</B></A> <A HREF="Distribution.html" target="_top"><B>NO FRAMES</B></A> <SCRIPT type="text/javascript"> <!-- if(window==top) { document.writeln('<A HREF="../../../../allclasses-noframe.html"><B>All Classes</B></A>'); } //--></SCRIPT><NOSCRIPT> <A HREF="../../../../allclasses-noframe.html"><B>All 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.trees.j48</FONT><BR>Class Distribution</H2><PRE>java.lang.Object <IMG SRC="../../../../resources/inherit.gif" ALT="extended by"><B>weka.classifiers.trees.j48.Distribution</B></PRE><DL><DT><B>All Implemented Interfaces:</B> <DD>java.lang.Cloneable, java.io.Serializable</DD></DL><HR><DL><DT>public class <B>Distribution</B><DT>extends java.lang.Object<DT>implements java.lang.Cloneable, java.io.Serializable</DL><P>Class for handling a distribution of class values.<P><P><DL><DT><B>Version:</B></DT> <DD>$Revision: 1.8 $</DD><DT><B>Author:</B></DT> <DD>Eibe Frank (eibe@cs.waikato.ac.nz)</DD><DT><B>See Also:</B><DD><A HREF="../../../../serialized-form.html#weka.classifiers.trees.j48.Distribution">Serialized Form</A></DL><HR><P><!-- ======== NESTED CLASS SUMMARY ======== --><!-- =========== FIELD SUMMARY =========== --><!-- ======== CONSTRUCTOR SUMMARY ======== --><A NAME="constructor_summary"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2"><B>Constructor Summary</B></FONT></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../../../weka/classifiers/trees/j48/Distribution.html#Distribution(weka.classifiers.trees.j48.Distribution)">Distribution</A></B>(<A HREF="../../../../weka/classifiers/trees/j48/Distribution.html" title="class in weka.classifiers.trees.j48">Distribution</A> toMerge)</CODE><BR> Creates distribution with only one bag by merging all bags of given distribution.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../../../weka/classifiers/trees/j48/Distribution.html#Distribution(weka.classifiers.trees.j48.Distribution, int)">Distribution</A></B>(<A HREF="../../../../weka/classifiers/trees/j48/Distribution.html" title="class in weka.classifiers.trees.j48">Distribution</A> toMerge, int index)</CODE><BR> Creates distribution with two bags by merging all bags apart of the indicated one.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../../../weka/classifiers/trees/j48/Distribution.html#Distribution(double[][])">Distribution</A></B>(double[][] table)</CODE><BR> Creates and initializes a new distribution using the given array.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../../../weka/classifiers/trees/j48/Distribution.html#Distribution(weka.core.Instances)">Distribution</A></B>(<A HREF="../../../../weka/core/Instances.html" title="class in weka.core">Instances</A> source)</CODE><BR> Creates a distribution with only one bag according to instances in source.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../../../weka/classifiers/trees/j48/Distribution.html#Distribution(weka.core.Instances, weka.classifiers.trees.j48.ClassifierSplitModel)">Distribution</A></B>(<A HREF="../../../../weka/core/Instances.html" title="class in weka.core">Instances</A> source, <A HREF="../../../../weka/classifiers/trees/j48/ClassifierSplitModel.html" title="class in weka.classifiers.trees.j48">ClassifierSplitModel</A> modelToUse)</CODE><BR> Creates a distribution according to given instances and split model.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../../../weka/classifiers/trees/j48/Distribution.html#Distribution(int, int)">Distribution</A></B>(int numBags, int numClasses)</CODE><BR> Creates and initializes a new distribution.</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"><TD COLSPAN=2><FONT SIZE="+2"><B>Method Summary</B></FONT></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/trees/j48/Distribution.html#actualNumBags()">actualNumBags</A></B>()</CODE><BR> Returns number of non-empty bags of distribution.</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/trees/j48/Distribution.html#actualNumClasses()">actualNumClasses</A></B>()</CODE><BR> Returns number of classes actually occuring in distribution.</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/trees/j48/Distribution.html#actualNumClasses(int)">actualNumClasses</A></B>(int bagIndex)</CODE><BR> Returns number of classes actually occuring in given bag.</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/trees/j48/Distribution.html#add(int, double[])">add</A></B>(int bagIndex, double[] counts)</CODE><BR> Adds counts to given bag.</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/trees/j48/Distribution.html#add(int, weka.core.Instance)">add</A></B>(int bagIndex, <A HREF="../../../../weka/core/Instance.html" title="class in weka.core">Instance</A> instance)</CODE><BR> Adds given instance to given bag.</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/trees/j48/Distribution.html#addInstWithUnknown(weka.core.Instances, int)">addInstWithUnknown</A></B>(<A HREF="../../../../weka/core/Instances.html" title="class in weka.core">Instances</A> source, int attIndex)</CODE><BR> Adds all instances with unknown values for given attribute, weighted according to frequency of instances in each bag.</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/trees/j48/Distribution.html#addRange(int, weka.core.Instances, int, int)">addRange</A></B>(int bagIndex, <A HREF="../../../../weka/core/Instances.html" title="class in weka.core">Instances</A> source, int startIndex, int lastPlusOne)</CODE><BR> Adds all instances in given range to given bag.</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/trees/j48/Distribution.html#addWeights(weka.core.Instance, double[])">addWeights</A></B>(<A HREF="../../../../weka/core/Instance.html" title="class in weka.core">Instance</A> instance, double[] weights)</CODE><BR> Adds given instance to all bags weighting it according to given weights.</TD></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/trees/j48/Distribution.html#check(double)">check</A></B>(double minNoObj)</CODE><BR> Checks if at least two bags contain a minimum number of instances.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> java.lang.Object</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../weka/classifiers/trees/j48/Distribution.html#clone()">clone</A></B>()</CODE><BR> Clones distribution (Deep copy of distribution).</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/trees/j48/Distribution.html#del(int, weka.core.Instance)">del</A></B>(int bagIndex, <A HREF="../../../../weka/core/Instance.html" title="class in weka.core">Instance</A> instance)</CODE><BR> Deletes given instance from given bag.</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/trees/j48/Distribution.html#delRange(int, weka.core.Instances, int, int)">delRange</A></B>(int bagIndex, <A HREF="../../../../weka/core/Instances.html" title="class in weka.core">Instances</A> source, int startIndex, int lastPlusOne)</CODE><BR> Deletes all instances in given range from given bag.</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/trees/j48/Distribution.html#dumpDistribution()">dumpDistribution</A></B>()</CODE><BR> Prints distribution.</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/trees/j48/Distribution.html#initialize()">initialize</A></B>()</CODE><BR> Sets all counts to zero.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> double</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../weka/classifiers/trees/j48/Distribution.html#laplaceProb(int)">laplaceProb</A></B>(int classIndex)</CODE><BR> Returns relative frequency of class over all bags with Laplace correction.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> double</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../weka/classifiers/trees/j48/Distribution.html#laplaceProb(int, int)">laplaceProb</A></B>(int classIndex, int intIndex)</CODE><BR> Returns relative frequency of class for given bag.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> double[][]</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../weka/classifiers/trees/j48/Distribution.html#matrix()">matrix</A></B>()</CODE><BR> Returns matrix with distribution of class values.</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/trees/j48/Distribution.html#maxBag()">maxBag</A></B>()</CODE><BR> Returns index of bag containing maximum number of instances.</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/trees/j48/Distribution.html#maxClass()">maxClass</A></B>()</CODE><BR> Returns class with highest frequency over all bags.</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/trees/j48/Distribution.html#maxClass(int)">maxClass</A></B>(int index)</CODE><BR> Returns class with highest frequency for given bag.</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/trees/j48/Distribution.html#numBags()">numBags</A></B>()</CODE><BR> Returns number of bags.</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/trees/j48/Distribution.html#numClasses()">numClasses</A></B>()</CODE><BR> Returns number of classes.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> double</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../weka/classifiers/trees/j48/Distribution.html#numCorrect()">numCorrect</A></B>()</CODE><BR> Returns perClass(maxClass()).</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> double</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../weka/classifiers/trees/j48/Distribution.html#numCorrect(int)">numCorrect</A></B>(int index)</CODE><BR> Returns perClassPerBag(index,maxClass(index)).</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> double</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../weka/classifiers/trees/j48/Distribution.html#numIncorrect()">numIncorrect</A></B>()</CODE><BR> Returns total-numCorrect().</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> double</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../weka/classifiers/trees/j48/Distribution.html#numIncorrect(int)">numIncorrect</A></B>(int index)</CODE><BR> Returns perBag(index)-numCorrect(index).</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> double</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../weka/classifiers/trees/j48/Distribution.html#perBag(int)">perBag</A></B>(int bagIndex)</CODE><BR> Returns number of (possibly fractional) instances in given bag.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> double</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../weka/classifiers/trees/j48/Distribution.html#perClass(int)">perClass</A></B>(int classIndex)</CODE><BR> Returns number of (possibly fractional) instances of given class.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> double</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../weka/classifiers/trees/j48/Distribution.html#perClassPerBag(int, int)">perClassPerBag</A></B>(int bagIndex, int classIndex)</CODE><BR> Returns number of (possibly fractional) instances of given class in given bag.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> double</CODE></FONT></TD>⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -