gov.redhawk.statistics.ui.internal.Stats.java Source code

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Here is the source code for gov.redhawk.statistics.ui.internal.Stats.java

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/******************************************************************************
 * This file is protected by Copyright. 
 * Please refer to the COPYRIGHT file distributed with this source distribution.
 *
 * This file is part of REDHAWK IDE.
 *
 * All rights reserved.  This program and the accompanying materials are made available under 
 * the terms of the Eclipse Public License v1.0 which accompanies this distribution, and is available at 
 * http://www.eclipse.org/legal/epl-v10.html
 *******************************************************************************/
package gov.redhawk.statistics.ui.internal;

import org.apache.commons.math.stat.descriptive.DescriptiveStatistics;
import org.apache.commons.math.stat.descriptive.UnivariateStatistic;
import org.apache.commons.math.stat.descriptive.rank.Median;

public class Stats extends DescriptiveStatistics {
    /**
     * 
     */
    private static final long serialVersionUID = 9047657894722901933L;
    public static final String MINIMUM = "Min", MAXIMUM = "Max", MEDIAN = "Median", MEAN = "Mean",
            STD_DEV = "Std Dev", NUM = "Samples";

    private UnivariateStatistic medianImpl = new Median();

    private final int length;

    public Stats(Number[] initialDoubleArray) {
        for (Number d : initialDoubleArray) {
            addValue(d.doubleValue());
        }
        length = initialDoubleArray.length;
    }

    public double getMedian() {
        return apply(medianImpl);

    }

    public int getLength() {
        return length;
    }

    public Number getStat(String key) {
        if (MINIMUM.equals(key)) {
            return getMin();
        } else if (MAXIMUM.equals(key)) {
            return getMax();
        } else if (MEAN.equals(key)) {
            return getMean();
        } else if (MEDIAN.equals(key)) {
            return getMedian();
        } else if (STD_DEV.equals(key)) {
            return getStandardDeviation();
        } else if (NUM.equals(key)) {
            return getLength();
        }
        return null;
    }

}