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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Frameset//EN""http://www.w3.org/TR/REC-html40/frameset.dtd"><!--NewPage--><HTML><HEAD><!-- Generated by javadoc on Wed Sep 04 10:31:48 CDT 2002 --><TITLE>: Package weka.core</TITLE><LINK REL ="stylesheet" TYPE="text/css" HREF="../../stylesheet.css" TITLE="Style"></HEAD><BODY BGCOLOR="white"><!-- ========== START OF NAVBAR ========== --><A NAME="navbar_top"><!-- --></A><TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0"><TR><TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"><A NAME="navbar_top_firstrow"><!-- --></A><TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3"> <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 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FRAMES</B></A></FONT></TD></TR></TABLE><!-- =========== END OF NAVBAR =========== --><HR><H2>Package weka.core</H2><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2"><B>Interface Summary</B></FONT></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="AdditionalMeasureProducer.html"><I>AdditionalMeasureProducer</I></A></B></TD><TD>Interface to something that can produce measures other than those calculated by evaluation modules.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="Copyable.html"><I>Copyable</I></A></B></TD><TD>Interface implemented by classes that can produce "shallow" copies of their objects.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="Drawable.html"><I>Drawable</I></A></B></TD><TD>Interface to something that can be drawn as a graph.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="Matchable.html"><I>Matchable</I></A></B></TD><TD>Interface to something that can be matched with tree matching algorithms.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="OptionHandler.html"><I>OptionHandler</I></A></B></TD><TD>Interface to something that understands options.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="Summarizable.html"><I>Summarizable</I></A></B></TD><TD>Interface to something that provides a short textual summary (as opposed to toString() which is usually a fairly complete description) of itself.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="WeightedInstancesHandler.html"><I>WeightedInstancesHandler</I></A></B></TD><TD>Interface to something that makes use of the information provided by instance weights.</TD></TR></TABLE> <P><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><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="Attribute.html">Attribute</A></B></TD><TD>Class for handling an attribute.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="AttributeStats.html">AttributeStats</A></B></TD><TD>A Utility class that contains summary information on an the values that appear in a dataset for a particular attribute.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="BinarySparseInstance.html">BinarySparseInstance</A></B></TD><TD>Class for storing a binary-data-only instance as a sparse vector.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="CheckOptionHandler.html">CheckOptionHandler</A></B></TD><TD>Simple command line checking of classes that implement OptionHandler.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="ContingencyTables.html">ContingencyTables</A></B></TD><TD>Class implementing some statistical routines for contingency tables.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="DistributedServer.html">DistributedServer</A></B></TD><TD>Class for running WEKA code on multiple machines.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="FastVector.html">FastVector</A></B></TD><TD>Implements a fast vector class without synchronized methods.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="Instance.html">Instance</A></B></TD><TD>Class for handling an instance.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="Instances.html">Instances</A></B></TD><TD>Class for handling an ordered set of weighted instances.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="Matrix.html">Matrix</A></B></TD><TD>Class for performing operations on a matrix of floating-point values.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="Option.html">Option</A></B></TD><TD>Class to store information about an option.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="Queue.html">Queue</A></B></TD><TD>Class representing a FIFO queue.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="Range.html">Range</A></B></TD><TD>Class representing a range of cardinal numbers.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="SelectedTag.html">SelectedTag</A></B></TD><TD>Represents a selected value from a finite set of values, where each value is a Tag (i.e.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="SerializedObject.html">SerializedObject</A></B></TD><TD>This class stores an object serialized in memory.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="SparseInstance.html">SparseInstance</A></B></TD><TD>Class for storing an instance as a sparse vector.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="SpecialFunctions.html">SpecialFunctions</A></B></TD><TD>Class implementing some mathematical functions.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="Statistics.html">Statistics</A></B></TD><TD>Class implementing some distributions, tests, etc.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="Tag.html">Tag</A></B></TD><TD>A <code>Tag</code> simply associates a numeric ID with a String description.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="Utils.html">Utils</A></B></TD><TD>Class implementing some simple utility methods.</TD></TR></TABLE> <P><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2"><B>Exception Summary</B></FONT></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="UnassignedClassException.html">UnassignedClassException</A></B></TD><TD><code>UnassignedClassException</code> is used when a method requires access to the Attribute designated as the class attribute in a set of Instances, but the Instances does not have any class attribute assigned (such as by setClassIndex()).</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="UnassignedDatasetException.html">UnassignedDatasetException</A></B></TD><TD><code>UnassignedDatasetException</code> is used when a method of an Instance is called that requires access to the Instance structure, but that the Instance does not contain a reference to any Instances (as set by Instance.setDataset(), or when an Instance is added to a set of Instances)).</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="UnsupportedAttributeTypeException.html">UnsupportedAttributeTypeException</A></B></TD><TD><code>UnsupportedAttributeTypeException</code> is used in situations where the throwing object is not able to accept Instances with the supplied structure, because one or more of the Attributes in the Instances are of the wrong type.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="UnsupportedClassTypeException.html">UnsupportedClassTypeException</A></B></TD><TD><code>UnsupportedClassTypeException</code> is used in situations where the throwing object is not able to accept Instances with the supplied structure, because the class Attribute is of the wrong type.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="WekaException.html">WekaException</A></B></TD><TD><code>WekaException</code> is used when some Weka-specific checked exception must be raised.</TD></TR></TABLE> <P><HR><!-- ========== START OF NAVBAR ========== --><A 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