defaultboxandwhiskercategorydataset.java

Web图形化的Java库

/* ======================================
 * JFreeChart : a free Java chart library
 * ======================================
 *
 * Project Info:  http://www.jfree.org/jfreechart/index.html
 * Project Lead:  David Gilbert ([e-mail]);
 *
 * (C) Copyright 2000-2003, by Object Refinery Limited and Contributors.
 *
 * This library is free software; you can redistribute it and/or modify it under the terms
 * of the GNU Lesser General Public License as published by the Free Software Foundation;
 * either version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
 * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 * See the GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License along with this
 * library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
 * Boston, MA 02111-1307, USA.
 *
 * ----------------------------------------
 * DefaultBoxAndWhiskerCategoryDataset.java
 * ----------------------------------------
 * (C) Copyright 2003, by David Browning and Contributors.
 *
 * Original Author:  David Browning (for Australian Institute of Marine Science);
 * Contributor(s):   -;
 *
 * $Id: DefaultBoxAndWhiskerCategoryDataset.java,v 1.2 2003/09/03 15:08:51 mungady Exp $
 *
 * Changes
 * -------
 * 05-Aug-2003 : Version 1, contributed by David Browning (DG);
 * 27-Aug-2003 : Moved from org.jfree.data --> org.jfree.data.statistics (DG);
 *
 */

package org.jfree.data.statistics;

import java.util.List;

import org.jfree.data.AbstractDataset;
import org.jfree.data.KeyedObjects2D;
import org.jfree.data.Range;
import org.jfree.data.RangeInfo;

/**
 * A convenience class that provides a default implementation of the
 * {@link BoxAndWhiskerCategoryDataset} interface.
 *
 * @author David Browning (for Australian Institute of Marine Science)
 */
public class DefaultBoxAndWhiskerCategoryDataset extends AbstractDataset
                                                 implements BoxAndWhiskerCategoryDataset,
                                                            RangeInfo {

    /** Storage for the data. */
    private KeyedObjects2D data;

    /** The minimum range value. */
    private Number minimumRangeValue;

    /** The maximum range value. */
    private Number maximumRangeValue;

    /** The range of values. */
    private Range valueRange;

    /**
     * Creates a new dataset.
     */
    public DefaultBoxAndWhiskerCategoryDataset() {

        this.data = new KeyedObjects2D();
        this.minimumRangeValue = null;
        this.maximumRangeValue = null;
        this.valueRange = new Range(0.0, 0.0);

    }

    /**
     * Returns the value for an item.
     *
     * @param row  the row index.
     * @param column  the column index.
     *
     * @return the value.
     */
    public Number getValue (int row, int column) {
        return getMedianValue(row, column);
    }

    /**
     * Returns the value for an item.
     *
     * @param rowKey  the row key.
     * @param columnKey  the columnKey.
     *
     * @return the value.
     */
    public Number getValue (Comparable rowKey, Comparable columnKey) {
        return getMedianValue(rowKey, columnKey);
    }

    /**
     * Returns the mean value for an item.
     * 
     * @param row  the row index (zero-based).
     * @param column  the column index (zero-based).
     * 
     * @return The mean value.
     */
    public Number getMeanValue(int row, int column) {

        Number result = null;
        BoxAndWhiskerItem item = (BoxAndWhiskerItem) this.data.getObject(row, column);
        if (item != null) {
            result = item.getMean();
        }
        return result;

    }

    /**
     * Returns the mean value for an item.
     * 
     * @param rowKey  the row key.
     * @param columnKey  the column key.
     * 
     * @return The mean value.
     */
    public Number getMeanValue(Comparable rowKey, Comparable columnKey) {

        Number result = null;
        BoxAndWhiskerItem item = (BoxAndWhiskerItem) this.data.getObject(rowKey, columnKey);
        if (item != null) {
            result = item.getMean();
        }
        return result;

    }

    /**
     * Returns the median value for an item.
     *
     * @param row  the row index (zero-based).
     * @param column  the column index (zero-based).
     *
     * @return the median value.
     */
    public Number getMedianValue(int row, int column) {

        Number result = null;
        BoxAndWhiskerItem item = (BoxAndWhiskerItem) this.data.getObject(row, column);
        if (item != null) {
            result = item.getMedian();
        }
        return result;

    }

    /**
     * Returns the median value for an item.
     *
     * @param rowKey  the row key.
     * @param columnKey  the columnKey.
     *
     * @return the median value.
     */
    public Number getMedianValue(Comparable rowKey, Comparable columnKey) {

        Number result = null;
        BoxAndWhiskerItem item = (BoxAndWhiskerItem) this.data.getObject(rowKey, columnKey);
        if (item != null) {
            result = item.getMedian();
        }
        return result;

    }

    /**
     * Returns the first quartile value.
     * 
     * @param row  the row index (zero-based).
     * @param column  the column index (zero-based).
     * 
     * @return The first quartile value.
     */
    public Number getQ1Value(int row, int column) {

        Number result = null;
        BoxAndWhiskerItem item = (BoxAndWhiskerItem) this.data.getObject(row, column);
        if (item != null) {
            result = item.getQ1();
        }
        return result;

    }

    /**
     * Returns the first quartile value.
     * 
     * @param rowKey  the row key.
     * @param columnKey  the column key.
     * 
     * @return The first quartile value.
     */
    public Number getQ1Value(Comparable rowKey, Comparable columnKey) {

        Number result = null;
        BoxAndWhiskerItem item = (BoxAndWhiskerItem) this.data.getObject(rowKey, columnKey);
        if (item != null) {
            result = item.getQ1();
        }
        return result;

    }

    /**
     * Returns the third quartile value.
     * 
     * @param row  the row index (zero-based).
     * @param column  the column index (zero-based).
     * 
     * @return The third quartile value.
     */
    public Number getQ3Value(int row, int column) {

        Number result = null;
        BoxAndWhiskerItem item = (BoxAndWhiskerItem) this.data.getObject(row, column);
        if (item != null) {
            result = item.getQ3();
        }
        return result;

    }

    /**
     * Returns the third quartile value.
     * 
     * @param rowKey  the row key.
     * @param columnKey  the column key.
     * 
     * @return The third quartile value.
     */
    public Number getQ3Value(Comparable rowKey, Comparable columnKey) {

        Number result = null;
        BoxAndWhiskerItem item = (BoxAndWhiskerItem) this.data.getObject(rowKey, columnKey);
        if (item != null) {
            result = item.getQ3();
        }
        return result;

    }

    /**
     * Returns the column index for a given key.
     *
     * @param key  the column key.
     *
     * @return the column index.
     */
    public int getColumnIndex(Comparable key) {
        return this.data.getColumnIndex(key);
    }

    /**
     * Returns a column key.
     *
     * @param column  the column index (zero-based).
     *
     * @return the column key.
     */
    public Comparable getColumnKey(int column) {
        return this.data.getColumnKey(column);
    }

    /**
     * Returns the column keys.
     *
     * @return the keys.
     */
    public List getColumnKeys() {
        return this.data.getColumnKeys();
    }

    /**
     * Returns the row index for a given key.
     *
     * @param key  the row key.
     *
     * @return the row index.
     */
    public int getRowIndex(Comparable key) {
        return this.data.getRowIndex(key);
    }

    /**
     * Returns a row key.
     *
     * @param row  the row index (zero-based).
     *
     * @return the row key.
     */
    public Comparable getRowKey(int row) {
        return this.data.getRowKey(row);
    }

    /**
     * Returns the row keys.
     *
     * @return the keys.
     */
    public List getRowKeys() {
        return this.data.getRowKeys();
    }

    /**
     * Returns the number of rows in the table.
     *
     * @return the row count.
     */
    public int getRowCount() {
        return this.data.getRowCount();
    }

    /**
     * Returns the number of columns in the table.
     *