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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 1.5.0_07) on Fri Aug 25 15:15:37 BST 2006 --><TITLE>DatasetUtilities (JFreeChart Class Library (version 1.0.2))</TITLE><META NAME="keywords" CONTENT="org.jfree.data.general.DatasetUtilities class"><LINK REL ="stylesheet" TYPE="text/css" HREF="../../../../stylesheet.css" TITLE="Style"><SCRIPT type="text/javascript">function windowTitle(){ parent.document.title="DatasetUtilities (JFreeChart Class Library (version 1.0.2))";}</SCRIPT><NOSCRIPT></NOSCRIPT></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=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"><A NAME="navbar_top_firstrow"><!-- --></A><TABLE BORDER="0" 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//--></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 | 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><A NAME="skip-navbar_top"></A><!-- ========= END OF TOP NAVBAR ========= --><HR><!-- ======== START OF CLASS DATA ======== --><H2><FONT SIZE="-1">org.jfree.data.general</FONT><BR>Class DatasetUtilities</H2><PRE>java.lang.Object <IMG SRC="../../../../resources/inherit.gif" ALT="extended by "><B>org.jfree.data.general.DatasetUtilities</B></PRE><HR><DL><DT><PRE>public final class <A HREF="../../../../src-html/org/jfree/data/general/DatasetUtilities.html#line.132"><B>DatasetUtilities</B></A><DT>extends java.lang.Object</DL></PRE><P>A collection of useful static methods relating to datasets.<P><P><HR><P><!-- ========== METHOD SUMMARY =========== --><A NAME="method_summary"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"><B>Method Summary</B></FONT></TH></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static double</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/data/general/DatasetUtilities.html#calculatePieDatasetTotal(org.jfree.data.general.PieDataset)">calculatePieDatasetTotal</A></B>(<A HREF="../../../../org/jfree/data/general/PieDataset.html" title="interface in org.jfree.data.general">PieDataset</A> dataset)</CODE><BR> Calculates the total of all the values in a <A HREF="../../../../org/jfree/data/general/PieDataset.html" title="interface in org.jfree.data.general"><CODE>PieDataset</CODE></A>.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static <A HREF="../../../../org/jfree/data/category/CategoryDataset.html" title="interface in org.jfree.data.category">CategoryDataset</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/data/general/DatasetUtilities.html#createCategoryDataset(java.lang.Comparable[], java.lang.Comparable[], double[][])">createCategoryDataset</A></B>(java.lang.Comparable[] rowKeys, java.lang.Comparable[] columnKeys, double[][] data)</CODE><BR> Creates a <A HREF="../../../../org/jfree/data/category/CategoryDataset.html" title="interface in org.jfree.data.category"><CODE>CategoryDataset</CODE></A> that contains a copy of the data in an array (instances of <code>Double</code> are created to represent the data items).</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static <A HREF="../../../../org/jfree/data/category/CategoryDataset.html" title="interface in org.jfree.data.category">CategoryDataset</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/data/general/DatasetUtilities.html#createCategoryDataset(java.lang.Comparable, org.jfree.data.KeyedValues)">createCategoryDataset</A></B>(java.lang.Comparable rowKey, <A HREF="../../../../org/jfree/data/KeyedValues.html" title="interface in org.jfree.data">KeyedValues</A> rowData)</CODE><BR> Creates a <A HREF="../../../../org/jfree/data/category/CategoryDataset.html" title="interface in org.jfree.data.category"><CODE>CategoryDataset</CODE></A> by copying the data from the supplied <A HREF="../../../../org/jfree/data/KeyedValues.html" title="interface in org.jfree.data"><CODE>KeyedValues</CODE></A> instance.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static <A HREF="../../../../org/jfree/data/category/CategoryDataset.html" title="interface in org.jfree.data.category">CategoryDataset</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/data/general/DatasetUtilities.html#createCategoryDataset(java.lang.String, java.lang.String, double[][])">createCategoryDataset</A></B>(java.lang.String rowKeyPrefix, java.lang.String columnKeyPrefix, double[][] data)</CODE><BR> Creates a <A HREF="../../../../org/jfree/data/category/CategoryDataset.html" title="interface in org.jfree.data.category"><CODE>CategoryDataset</CODE></A> that contains a copy of the data in an array (instances of <code>Double</code> are created to represent the data items).</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static <A HREF="../../../../org/jfree/data/category/CategoryDataset.html" title="interface in org.jfree.data.category">CategoryDataset</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/data/general/DatasetUtilities.html#createCategoryDataset(java.lang.String, java.lang.String, java.lang.Number[][])">createCategoryDataset</A></B>(java.lang.String rowKeyPrefix, java.lang.String columnKeyPrefix, java.lang.Number[][] data)</CODE><BR> Creates a <A HREF="../../../../org/jfree/data/category/CategoryDataset.html" title="interface in org.jfree.data.category"><CODE>CategoryDataset</CODE></A> that contains a copy of the data in an array.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static <A HREF="../../../../org/jfree/data/general/PieDataset.html" title="interface in org.jfree.data.general">PieDataset</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/data/general/DatasetUtilities.html#createConsolidatedPieDataset(org.jfree.data.general.PieDataset, java.lang.Comparable, double)">createConsolidatedPieDataset</A></B>(<A HREF="../../../../org/jfree/data/general/PieDataset.html" title="interface in org.jfree.data.general">PieDataset</A> source, java.lang.Comparable key, double minimumPercent)</CODE><BR> Creates a new pie dataset based on the supplied dataset, but modified by aggregating all the low value items (those whose value is lower than the <code>percentThreshold</code>) into a single item with the key "Other".</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static <A HREF="../../../../org/jfree/data/general/PieDataset.html" title="interface in org.jfree.data.general">PieDataset</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/data/general/DatasetUtilities.html#createConsolidatedPieDataset(org.jfree.data.general.PieDataset, java.lang.Comparable, double, int)">createConsolidatedPieDataset</A></B>(<A HREF="../../../../org/jfree/data/general/PieDataset.html" title="interface in org.jfree.data.general">PieDataset</A> source, java.lang.Comparable key, double minimumPercent, int minItems)</CODE><BR> Creates a new pie dataset based on the supplied dataset, but modified by aggregating all the low value items (those whose value is lower than the <code>percentThreshold</code>) into a single item.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static <A HREF="../../../../org/jfree/data/general/PieDataset.html" title="interface in org.jfree.data.general">PieDataset</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/data/general/DatasetUtilities.html#createPieDatasetForColumn(org.jfree.data.category.CategoryDataset, java.lang.Comparable)">createPieDatasetForColumn</A></B>(<A HREF="../../../../org/jfree/data/category/CategoryDataset.html" title="interface in org.jfree.data.category">CategoryDataset</A> dataset, java.lang.Comparable columnKey)</CODE><BR> Creates a pie dataset from a table dataset by taking all the values⌨️ 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