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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 1.4.2_05) on Mon Mar 07 15:27:00 NZDT 2005 --><TITLE>weka.filters.unsupervised.attribute</TITLE><META NAME="keywords" CONTENT="weka.filters.unsupervised.attribute package"><LINK REL ="stylesheet" TYPE="text/css" HREF="../../../../stylesheet.css" TITLE="Style"><SCRIPT type="text/javascript">function windowTitle(){ parent.document.title="weka.filters.unsupervised.attribute";}</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="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Package</B></FONT> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <FONT CLASS="NavBarFont1">Class</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/filters/supervised/instance/package-summary.html"><B>PREV PACKAGE</B></A> <A HREF="../../../../weka/filters/unsupervised/instance/package-summary.html"><B>NEXT PACKAGE</B></A></FONT></TD><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../../index.html" target="_top"><B>FRAMES</B></A> <A HREF="package-summary.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></TABLE><A NAME="skip-navbar_top"></A><!-- ========= END OF TOP NAVBAR ========= --><HR><H2>Package weka.filters.unsupervised.attribute</H2><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2"><B>Class Summary</B></FONT></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="../../../../weka/filters/unsupervised/attribute/AbstractTimeSeries.html" title="class in weka.filters.unsupervised.attribute">AbstractTimeSeries</A></B></TD><TD>An abstract instance filter that assumes instances form time-series data and performs some merging of attribute values in the current instance with attribute attribute values of some previous (or future) instance.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="../../../../weka/filters/unsupervised/attribute/Add.html" title="class in weka.filters.unsupervised.attribute">Add</A></B></TD><TD>An instance filter that adds a new attribute to the dataset.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="../../../../weka/filters/unsupervised/attribute/AddCluster.html" title="class in weka.filters.unsupervised.attribute">AddCluster</A></B></TD><TD>A filter that adds a new nominal attribute representing the cluster assigned to each instance by the specified clustering algorithm.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="../../../../weka/filters/unsupervised/attribute/AddExpression.html" title="class in weka.filters.unsupervised.attribute">AddExpression</A></B></TD><TD>Applys a mathematical expression involving attributes and numeric constants to a dataset.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="../../../../weka/filters/unsupervised/attribute/AddNoise.html" title="class in weka.filters.unsupervised.attribute">AddNoise</A></B></TD><TD>Introduces noise data a random subsample of the dataset by changing a given attribute (attribute must be nominal) Valid options are:</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="../../../../weka/filters/unsupervised/attribute/ChangeDateFormat.html" title="class in weka.filters.unsupervised.attribute">ChangeDateFormat</A></B></TD><TD>Changes the date format used by a date attribute.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="../../../../weka/filters/unsupervised/attribute/ClusterMembership.html" title="class in weka.filters.unsupervised.attribute">ClusterMembership</A></B></TD><TD>A filter that uses a clusterer to obtain cluster membership values for each input instance and outputs them as new instances.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="../../../../weka/filters/unsupervised/attribute/Copy.html" title="class in weka.filters.unsupervised.attribute">Copy</A></B></TD><TD>An instance filter that copies a range of attributes in the dataset.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="../../../../weka/filters/unsupervised/attribute/Discretize.html" title="class in weka.filters.unsupervised.attribute">Discretize</A></B></TD><TD>An instance filter that discretizes a range of numeric attributes in the dataset into nominal attributes.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="../../../../weka/filters/unsupervised/attribute/FirstOrder.html" title="class in weka.filters.unsupervised.attribute">FirstOrder</A></B></TD><TD>This instance filter takes a range of N numeric attributes and replaces them with N-1 numeric attributes, the values of which are the difference between consecutive attribute values from the original instance.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="../../../../weka/filters/unsupervised/attribute/MakeIndicator.html" title="class in weka.filters.unsupervised.attribute">MakeIndicator</A></B></TD><TD>Creates a new dataset with a boolean attribute replacing a nominal attribute.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="../../../../weka/filters/unsupervised/attribute/MergeTwoValues.html" title="class in weka.filters.unsupervised.attribute">MergeTwoValues</A></B></TD><TD>Merges two values of a nominal attribute.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="../../../../weka/filters/unsupervised/attribute/NominalToBinary.html" title="class in weka.filters.unsupervised.attribute">NominalToBinary</A></B></TD><TD>Converts all nominal attributes into binary numeric attributes.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor">⌨️ 快捷键说明
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