01: /* ===========================================================
02: * JFreeChart : a free chart library for the Java(tm) platform
03: * ===========================================================
04: *
05: * (C) Copyright 2000-2007, by Object Refinery Limited and Contributors.
06: *
07: * Project Info: http://www.jfree.org/jfreechart/index.html
08: *
09: * This library is free software; you can redistribute it and/or modify it
10: * under the terms of the GNU Lesser General Public License as published by
11: * the Free Software Foundation; either version 2.1 of the License, or
12: * (at your option) any later version.
13: *
14: * This library is distributed in the hope that it will be useful, but
15: * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
16: * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
17: * License for more details.
18: *
19: * You should have received a copy of the GNU Lesser General Public
20: * License along with this library; if not, write to the Free Software
21: * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
22: * USA.
23: *
24: * [Java is a trademark or registered trademark of Sun Microsystems, Inc.
25: * in the United States and other countries.]
26: *
27: * -------------------------------
28: * StatisticalCategoryDataset.java
29: * -------------------------------
30: * (C) Copyright 2002-2007, by Pascal Collet and Contributors.
31: *
32: * Original Author: Pascal Collet;
33: * Contributor(s): David Gilbert (for Object Refinery Limited);
34: *
35: * $Id: StatisticalCategoryDataset.java,v 1.2.2.2 2007/02/02 15:50:24 mungady Exp $
36: *
37: * Changes
38: * -------
39: * 21-Aug-2002 : Version 1, contributed by Pascal Collet (DG);
40: * 07-Oct-2002 : Fixed errors reported by Checkstyle (DG);
41: * 24-Oct-2002 : Amendments in line with changes to the CategoryDataset
42: * interface (DG);
43: * ------------- JFREECHART 1.0.x ---------------------------------------------
44: * 02-Feb-2007 : Removed author tags from all over JFreeChart sources (DG);
45: *
46: */
47:
48: package org.jfree.data.statistics;
49:
50: import org.jfree.data.category.CategoryDataset;
51:
52: /**
53: * A category dataset that defines a median and standard deviation value for
54: * each item.
55: */
56: public interface StatisticalCategoryDataset extends CategoryDataset {
57:
58: /**
59: * Returns the mean value for an item.
60: *
61: * @param row the row index (zero-based).
62: * @param column the column index (zero-based).
63: *
64: * @return The mean value.
65: */
66: public Number getMeanValue(int row, int column);
67:
68: /**
69: * Returns the mean value for an item.
70: *
71: * @param rowKey the row key.
72: * @param columnKey the columnKey.
73: *
74: * @return The mean value.
75: */
76: public Number getMeanValue(Comparable rowKey, Comparable columnKey);
77:
78: /**
79: * Returns the standard deviation value for an item.
80: *
81: * @param row the row index (zero-based).
82: * @param column the column index (zero-based).
83: *
84: * @return The standard deviation.
85: */
86: public Number getStdDevValue(int row, int column);
87:
88: /**
89: * Returns the standard deviation value for an item.
90: *
91: * @param rowKey the row key.
92: * @param columnKey the columnKey.
93: *
94: * @return The standard deviation.
95: */
96: public Number getStdDevValue(Comparable rowKey, Comparable columnKey);
97:
98: }
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