001 /* =========================================================== 002 * JFreeChart : a free chart library for the Java(tm) platform 003 * =========================================================== 004 * 005 * (C) Copyright 2000-2007, by Object Refinery Limited and Contributors. 006 * 007 * Project Info: http://www.jfree.org/jfreechart/index.html 008 * 009 * This library is free software; you can redistribute it and/or modify it 010 * under the terms of the GNU Lesser General Public License as published by 011 * the Free Software Foundation; either version 2.1 of the License, or 012 * (at your option) any later version. 013 * 014 * This library is distributed in the hope that it will be useful, but 015 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 016 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public 017 * License for more details. 018 * 019 * You should have received a copy of the GNU Lesser General Public 020 * License along with this library; if not, write to the Free Software 021 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 022 * USA. 023 * 024 * [Java is a trademark or registered trademark of Sun Microsystems, Inc. 025 * in the United States and other countries.] 026 * 027 * ------------------------------- 028 * StatisticalCategoryDataset.java 029 * ------------------------------- 030 * (C) Copyright 2002-2007, by Pascal Collet and Contributors. 031 * 032 * Original Author: Pascal Collet; 033 * Contributor(s): David Gilbert (for Object Refinery Limited); 034 * 035 * $Id: StatisticalCategoryDataset.java,v 1.2.2.2 2007/02/02 15:50:24 mungady Exp $ 036 * 037 * Changes 038 * ------- 039 * 21-Aug-2002 : Version 1, contributed by Pascal Collet (DG); 040 * 07-Oct-2002 : Fixed errors reported by Checkstyle (DG); 041 * 24-Oct-2002 : Amendments in line with changes to the CategoryDataset 042 * interface (DG); 043 * ------------- JFREECHART 1.0.x --------------------------------------------- 044 * 02-Feb-2007 : Removed author tags from all over JFreeChart sources (DG); 045 * 046 */ 047 048 package org.jfree.data.statistics; 049 050 import org.jfree.data.category.CategoryDataset; 051 052 /** 053 * A category dataset that defines a median and standard deviation value for 054 * each item. 055 */ 056 public interface StatisticalCategoryDataset extends CategoryDataset { 057 058 /** 059 * Returns the mean value for an item. 060 * 061 * @param row the row index (zero-based). 062 * @param column the column index (zero-based). 063 * 064 * @return The mean value. 065 */ 066 public Number getMeanValue(int row, int column); 067 068 /** 069 * Returns the mean value for an item. 070 * 071 * @param rowKey the row key. 072 * @param columnKey the columnKey. 073 * 074 * @return The mean value. 075 */ 076 public Number getMeanValue(Comparable rowKey, Comparable columnKey); 077 078 /** 079 * Returns the standard deviation value for an item. 080 * 081 * @param row the row index (zero-based). 082 * @param column the column index (zero-based). 083 * 084 * @return The standard deviation. 085 */ 086 public Number getStdDevValue(int row, int column); 087 088 /** 089 * Returns the standard deviation value for an item. 090 * 091 * @param rowKey the row key. 092 * @param columnKey the columnKey. 093 * 094 * @return The standard deviation. 095 */ 096 public Number getStdDevValue(Comparable rowKey, Comparable columnKey); 097 098 } 099