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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 11:26:55 BST 2003 --><TITLE>StatisticalCategoryDataset (JFreeChart Class Library (version 0.9.12))</TITLE><META NAME="keywords" CONTENT="org.jfree.data.statistics.StatisticalCategoryDataset,StatisticalCategoryDataset interface"><LINK REL ="stylesheet" TYPE="text/css" HREF="../../../../stylesheet.css" TITLE="Style"></HEAD><SCRIPT>function asd(){parent.document.title="StatisticalCategoryDataset (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 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ROWSPAN=3><EM></EM></TD></TR><TR><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../../org/jfree/data/statistics/BoxAndWhiskerXYDataset.html"><B>PREV CLASS</B></A> NEXT CLASS</FONT></TD><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../../index.html" TARGET="_top"><B>FRAMES</B></A> <A HREF="StatisticalCategoryDataset.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><TR><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> SUMMARY: NESTED | FIELD | CONSTR | <A HREF="#method_summary">METHOD</A></FONT></TD><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">DETAIL: FIELD | CONSTR | <A HREF="#method_detail">METHOD</A></FONT></TD></TR></TABLE><!-- =========== END OF NAVBAR =========== --><HR><!-- ======== START OF CLASS DATA ======== --><H2><FONT SIZE="-1">org.jfree.data.statistics</FONT><BR>Interface StatisticalCategoryDataset</H2><DL><DT><B>All Superinterfaces:</B> <DD><A HREF="../../../../org/jfree/data/CategoryDataset.html">CategoryDataset</A>, <A HREF="../../../../org/jfree/data/Dataset.html">Dataset</A>, <A HREF="../../../../org/jfree/data/KeyedValues2D.html">KeyedValues2D</A>, <A HREF="../../../../org/jfree/data/Values2D.html">Values2D</A></DD></DL><DL><DT><B>All Known Implementing Classes:</B> <DD><A HREF="../../../../org/jfree/data/statistics/DefaultStatisticalCategoryDataset.html">DefaultStatisticalCategoryDataset</A></DD></DL><HR><DL><DT>public interface <B>StatisticalCategoryDataset</B><DT>extends <A HREF="../../../../org/jfree/data/CategoryDataset.html">CategoryDataset</A></DL><P>A category dataset that defines a median and standard deviation value for each item.<P><P><DL><DT><B>Author:</B></DT> <DD>Pascal Collet</DD></DL><HR><P><!-- ======== NESTED CLASS SUMMARY ======== --><!-- =========== FIELD SUMMARY =========== --><!-- ======== CONSTRUCTOR SUMMARY ======== --><!-- ========== METHOD SUMMARY =========== --><A NAME="method_summary"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><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> java.lang.Number</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/data/statistics/StatisticalCategoryDataset.html#getMeanValue(java.lang.Comparable, java.lang.Comparable)">getMeanValue</A></B>(java.lang.Comparable rowKey, java.lang.Comparable columnKey)</CODE><BR> Returns the mean value for an item.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> java.lang.Number</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/data/statistics/StatisticalCategoryDataset.html#getMeanValue(int, int)">getMeanValue</A></B>(int row, int column)</CODE><BR> Returns the mean value for an item.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> java.lang.Number</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/data/statistics/StatisticalCategoryDataset.html#getStdDevValue(java.lang.Comparable, java.lang.Comparable)">getStdDevValue</A></B>(java.lang.Comparable rowKey, java.lang.Comparable columnKey)</CODE><BR> Returns the standard deviation value for an item.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> java.lang.Number</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/data/statistics/StatisticalCategoryDataset.html#getStdDevValue(int, int)">getStdDevValue</A></B>(int row, int column)</CODE><BR> Returns the standard deviation value for an item.</TD></TR></TABLE> <A NAME="methods_inherited_from_class_org.jfree.data.KeyedValues2D"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TD><B>Methods inherited from interface org.jfree.data.<A HREF="../../../../org/jfree/data/KeyedValues2D.html">KeyedValues2D</A></B></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><A HREF="../../../../org/jfree/data/KeyedValues2D.html#getColumnIndex(java.lang.Comparable)">getColumnIndex</A>, <A HREF="../../../../org/jfree/data/KeyedValues2D.html#getColumnKey(int)">getColumnKey</A>, <A HREF="../../../../org/jfree/data/KeyedValues2D.html#getColumnKeys()">getColumnKeys</A>, <A HREF="../../../../org/jfree/data/KeyedValues2D.html#getRowIndex(java.lang.Comparable)">getRowIndex</A>, <A HREF="../../../../org/jfree/data/KeyedValues2D.html#getRowKey(int)">getRowKey</A>, <A HREF="../../../../org/jfree/data/KeyedValues2D.html#getRowKeys()">getRowKeys</A>, <A HREF="../../../../org/jfree/data/KeyedValues2D.html#getValue(java.lang.Comparable, java.lang.Comparable)">getValue</A></CODE></TD></TR></TABLE> <A NAME="methods_inherited_from_class_org.jfree.data.Values2D"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TD><B>Methods inherited from interface org.jfree.data.<A HREF="../../../../org/jfree/data/Values2D.html">Values2D</A></B></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><A HREF="../../../../org/jfree/data/Values2D.html#getColumnCount()">getColumnCount</A>, <A HREF="../../../../org/jfree/data/Values2D.html#getRowCount()">getRowCount</A>, <A HREF="../../../../org/jfree/data/Values2D.html#getValue(int, int)">getValue</A></CODE></TD></TR></TABLE> <A NAME="methods_inherited_from_class_org.jfree.data.Dataset"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TD><B>Methods inherited from interface org.jfree.data.<A HREF="../../../../org/jfree/data/Dataset.html">Dataset</A></B></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><A HREF="../../../../org/jfree/data/Dataset.html#addChangeListener(org.jfree.data.DatasetChangeListener)">addChangeListener</A>, <A HREF="../../../../org/jfree/data/Dataset.html#getGroup()">getGroup</A>, <A HREF="../../../../org/jfree/data/Dataset.html#removeChangeListener(org.jfree.data.DatasetChangeListener)">removeChangeListener</A>, <A HREF="../../../../org/jfree/data/Dataset.html#setGroup(org.jfree.data.DatasetGroup)">setGroup</A></CODE></TD></TR></TABLE> <P><!-- ============ FIELD DETAIL =========== --><!-- ========= CONSTRUCTOR DETAIL ======== --><!-- ============ METHOD DETAIL ========== --><A NAME="method_detail"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=1><FONT SIZE="+2"><B>Method Detail</B></FONT></TD></TR></TABLE><A NAME="getMeanValue(int, int)"><!-- --></A><H3>getMeanValue</H3><PRE>public java.lang.Number <B>getMeanValue</B>(int row, int column)</PRE><DL><DD>Returns the mean value for an item.<P><DD><DL></DL></DD><DD><DL><DT><B>Parameters:</B><DD><CODE>row</CODE> - the row index (zero-based).<DD><CODE>column</CODE> - the column index (zero-based).<DT><B>Returns:</B><DD>the mean value.</DL></DD></DL><HR><A NAME="getMeanValue(java.lang.Comparable, java.lang.Comparable)"><!-- --></A><H3>getMeanValue</H3><PRE>public java.lang.Number <B>getMeanValue</B>(java.lang.Comparable rowKey, java.lang.Comparable columnKey)</PRE><DL><DD>Returns the mean value for an item.<P><DD><DL></DL></DD><DD><DL><DT><B>Parameters:</B><DD><CODE>rowKey</CODE> - the row key.<DD><CODE>columnKey</CODE> - the columnKey.<DT><B>Returns:</B><DD>the mean value.</DL></DD></DL><HR><A NAME="getStdDevValue(int, int)"><!-- --></A><H3>getStdDevValue</H3><PRE>public java.lang.Number <B>getStdDevValue</B>(int row, int column)</PRE><DL><DD>Returns the standard deviation value for an item.<P><DD><DL></DL></DD><DD><DL><DT><B>Parameters:</B><DD><CODE>row</CODE> - the row index (zero-based).<DD><CODE>column</CODE> - the column index (zero-based).<DT><B>Returns:</B><DD>the standard deviation.</DL></DD></DL><HR><A NAME="getStdDevValue(java.lang.Comparable, java.lang.Comparable)"><!-- --></A><H3>getStdDevValue</H3><PRE>public java.lang.Number <B>getStdDevValue</B>(java.lang.Comparable rowKey, java.lang.Comparable columnKey)</PRE><DL><DD>Returns the standard deviation value for an item.<P><DD><DL></DL></DD><DD><DL><DT><B>Parameters:</B><DD><CODE>rowKey</CODE> - the row key.<DD><CODE>columnKey</CODE> - the columnKey.<DT><B>Returns:</B><DD>the standard deviation.</DL></DD></DL><!-- ========= END OF CLASS DATA ========= --><HR><!-- ========== START OF NAVBAR ========== --><A NAME="navbar_bottom"><!-- --></A><TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0"><TR><TD COLSPAN=3 BGCOLOR="#EEEEFF" 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