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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN""http://www.w3.org/TR/REC-html40/loose.dtd"><!--NewPage--><HTML><HEAD><!-- Generated by javadoc on Thu Sep 11 11:26:53 BST 2003 --><TITLE>org.jfree.data (JFreeChart Class Library (version 0.9.12))</TITLE><META NAME="keywords" CONTENT="org.jfree.data package"><LINK REL ="stylesheet" TYPE="text/css" HREF="../../../stylesheet.css" TITLE="Style"></HEAD><SCRIPT>function asd(){parent.document.title="org.jfree.data (JFreeChart Class Library (version 0.9.12))";}</SCRIPT><BODY BGCOLOR="white" onload="asd();"><!-- ========== START OF NAVBAR ========== --><A NAME="navbar_top"><!-- --></A><TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0"><TR><TD COLSPAN=3 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 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="../../../help-doc.html"><FONT CLASS="NavBarFont1"><B>Help</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="../../../org/jfree/chart/urls/package-summary.html"><B>PREV PACKAGE</B></A> <A HREF="../../../org/jfree/data/resources/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> <!-- if(window==top) { document.writeln('<A HREF="../../../allclasses-noframe.html" TARGET=""><B>All Classes</B></A>'); } //--></SCRIPT><NOSCRIPT><A HREF="../../../allclasses-noframe.html" TARGET=""><B>All Classes</B></A></NOSCRIPT></FONT></TD></TR></TABLE><!-- =========== END OF NAVBAR =========== --><HR><H2>Package org.jfree.data</H2>Data interfaces and classes.<P><B>See:</B><BR> <A HREF="#package_description"><B>Description</B></A><P><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="CategoryDataset.html"><I>CategoryDataset</I></A></B></TD><TD>The interface for a dataset with one or more series, and values associated with categories.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="CombinationDataset.html"><I>CombinationDataset</I></A></B></TD><TD>Interface that describes the new methods that any combined dataset needs to implement.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="ContourDataset.html"><I>ContourDataset</I></A></B></TD><TD>The interface through which JFreeChart obtains data in the form of (x, y, z) items - used for XY and XYZ plots.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="Dataset.html"><I>Dataset</I></A></B></TD><TD>The base interface for data sets.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="DatasetChangeListener.html"><I>DatasetChangeListener</I></A></B></TD><TD>The interface that must be supported by classes that wish to receive notification of changes to a dataset.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="DomainInfo.html"><I>DomainInfo</I></A></B></TD><TD>An interface (optional) that can be implemented by a dataset to assist in determining the minimum and maximum values.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="Function2D.html"><I>Function2D</I></A></B></TD><TD>A function of the form y = f(x).</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="HighLowDataset.html"><I>HighLowDataset</I></A></B></TD><TD>An interface that defines data in the form of (x, high, low, open, close) tuples.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="IntervalCategoryDataset.html"><I>IntervalCategoryDataset</I></A></B></TD><TD>A category dataset that defines a value range for each series/category combination.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="IntervalXYDataset.html"><I>IntervalXYDataset</I></A></B></TD><TD>An extension of the <A HREF="../../../org/jfree/data/XYDataset.html"><CODE>XYDataset</CODE></A> interface that allows a range of data to be defined for the X values, the Y values, or both the X and Y values.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="IntervalXYZDataset.html"><I>IntervalXYZDataset</I></A></B></TD><TD>An extension of the <A HREF="../../../org/jfree/data/XYZDataset.html"><CODE>XYZDataset</CODE></A> interface that allows a range of data to be defined for any of the X values, the Y values, and the Z values.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="KeyedValue.html"><I>KeyedValue</I></A></B></TD><TD>A (key, value) pair.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="KeyedValueDataset.html"><I>KeyedValueDataset</I></A></B></TD><TD>A dataset containing a single value.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="KeyedValues.html"><I>KeyedValues</I></A></B></TD><TD>A collection of values where each value is associated with a key.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="KeyedValues2D.html"><I>KeyedValues2D</I></A></B></TD><TD>An extension of the <A HREF="../../../org/jfree/data/Values2D.html"><CODE>Values2D</CODE></A> interface where a unique key is associated with the row and column indices.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="KeyedValues2DDataset.html"><I>KeyedValues2DDataset</I></A></B></TD><TD>A dataset containing (key, value) data items.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="KeyedValuesDataset.html"><I>KeyedValuesDataset</I></A></B></TD><TD>A dataset containing (key, value) data items.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="MeterDataset.html"><I>MeterDataset</I></A></B></TD><TD>A dataset containing a single value within an overall range.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="MultiIntervalCategoryDataset.html"><I>MultiIntervalCategoryDataset</I></A></B></TD><TD>An extension of the <A HREF="../../../org/jfree/data/IntervalCategoryDataset.html"><CODE>IntervalCategoryDataset</CODE></A> interface that adds support for multiple sub-intervals.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="PieDataset.html"><I>PieDataset</I></A></B></TD><TD>A general purpose dataset where values are associated with keys.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="RangeInfo.html"><I>RangeInfo</I></A></B></TD><TD>An interface (optional) that can be implemented by a dataset to assist in determining the minimum and maximum values.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="SeriesChangeListener.html"><I>SeriesChangeListener</I></A></B></TD><TD>Methods for receiving notification of changes to a data series.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="SeriesDataset.html"><I>SeriesDataset</I></A></B></TD><TD>The interface for a dataset consisting of one or many series of data.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="SignalsDataset.html"><I>SignalsDataset</I></A></B></TD><TD>An interface that adds signal information to an <A HREF="../../../org/jfree/data/XYDataset.html"><CODE>XYDataset</CODE></A>.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="StatisticalCategoryDataset.html"><I>StatisticalCategoryDataset</I></A></B></TD><TD>A category dataset that defines a median and standard deviation value for each item.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="Value.html"><I>Value</I></A></B></TD><TD>A general purpose interface for accessing a value.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="ValueDataset.html"><I>ValueDataset</I></A></B></TD><TD>An interface for a dataset that returns a single value.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="Values.html"><I>Values</I></A></B></TD><TD>An interface through which (single-dimension) data values can be accessed.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="Values2D.html"><I>Values2D</I></A></B></TD><TD>A general purpose interface that can be used to access a table of values.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="WindDataset.html"><I>WindDataset</I></A></B></TD><TD>Interface for a dataset that supplies wind intensity and direction values observed at various points in time.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="XisSymbolic.html"><I>XisSymbolic</I></A></B></TD><TD>Represent a data set where X is a symbolic values.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="XYDataset.html"><I>XYDataset</I></A></B></TD><TD>An interface through which data in the form of (x, y) pairs can be accessed.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="XYZDataset.html"><I>XYZDataset</I></A></B></TD><TD>The interface through which JFreeChart obtains data in the form of (x, y, z) items - used for XY and XYZ plots.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="YisSymbolic.html"><I>YisSymbolic</I></A></B></TD><TD>Represent a data set where Y is a symbolic values.</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="AbstractDataset.html">AbstractDataset</A></B></TD><TD>An abstract implementation of the <A HREF="../../../org/jfree/data/Dataset.html"><CODE>Dataset</CODE></A> interface, containing a mechanism for registering change listeners.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="AbstractSeriesDataset.html">AbstractSeriesDataset</A></B></TD><TD>An abstract implementation of the <A HREF="../../../org/jfree/data/SeriesDataset.html"><CODE>SeriesDataset</CODE></A> interface, containing a mechanism for registering change listeners.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="CategoryToPieDataset.html">CategoryToPieDataset</A></B></TD><TD>A <A HREF="../../../org/jfree/data/PieDataset.html"><CODE>PieDataset</CODE></A> implementation that obtains its data from one row or column of a <A HREF="../../../org/jfree/data/CategoryDataset.html"><CODE>CategoryDataset</CODE></A>.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="CombinedDataset.html">CombinedDataset</A></B></TD><TD>This class can combine instances of <A HREF="../../../org/jfree/data/XYDataset.html"><CODE>XYDataset</CODE></A>, <A HREF="../../../org/jfree/data/HighLowDataset.html"><CODE>HighLowDataset</CODE></A> and <A HREF="../../../org/jfree/data/IntervalXYDataset.html"><CODE>IntervalXYDataset</CODE></A> together exposing the union of all the series under one dataset.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="DatasetChangeEvent.html">DatasetChangeEvent</A></B></TD><TD>A change event that encapsulates information about a change to a dataset.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="DatasetGroup.html">DatasetGroup</A></B></TD><TD>A class that is used to group datasets.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="DatasetUtilities.html">DatasetUtilities</A></B></TD><TD>A collection of useful static methods relating to datasets.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="DataUtilities.html">DataUtilities</A></B></TD><TD>Utility methods for use with some of the data classes (but not the datasets, see <A HREF="../../../org/jfree/data/DatasetUtilities.html"><CODE>DatasetUtilities</CODE></A>).</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="DateRange.html">DateRange</A></B></TD><TD>A range specified in terms of two <code>java.util.Date</code> objects.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="DefaultCategoryDataset.html">DefaultCategoryDataset</A></B></TD>⌨️ 快捷键说明
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