MedianAggregator.java

/*
 * #%L
 * gitools-utils
 * %%
 * Copyright (C) 2013 Universitat Pompeu Fabra - Biomedical Genomics group
 * %%
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as
 * published by the Free Software Foundation, either version 3 of the 
 * License, or (at your option) any later version.
 * 
 * This program 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 General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public 
 * License along with this program.  If not, see
 * <http://www.gnu.org/licenses/gpl-3.0.html>.
 * #L%
 */
package org.gitools.utils.aggregation;

import org.apache.commons.math3.stat.descriptive.rank.Median;
import org.gitools.api.analysis.IAggregator;


public class MedianAggregator extends AbstractAggregator {

    public final static IAggregator INSTANCE = new MedianAggregator();
    private final Median median;

    private MedianAggregator() {
        super("Median");
        this.median = new Median();
    }

    @Override
    public Double aggregateNoNulls(double[] data) {
        return median.evaluate(data);
    }
}