playground.johannes.studies.netgeneration.CreatePowerLaw.java Source code

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Here is the source code for playground.johannes.studies.netgeneration.CreatePowerLaw.java

Source

/* *********************************************************************** *
 * project: org.matsim.*
 * CreatePowerLaw.java
 *                                                                         *
 * *********************************************************************** *
 *                                                                         *
 * copyright       : (C) 2011 by the members listed in the COPYING,        *
 *                   LICENSE and WARRANTY file.                            *
 * email           : info at matsim dot org                                *
 *                                                                         *
 * *********************************************************************** *
 *                                                                         *
 *   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 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *   See also COPYING, LICENSE and WARRANTY file                           *
 *                                                                         *
 * *********************************************************************** */
package playground.johannes.studies.netgeneration;

import java.io.IOException;

import gnu.trove.TDoubleDoubleHashMap;

import org.apache.commons.math.stat.descriptive.DescriptiveStatistics;

import playground.johannes.sna.math.Discretizer;
import playground.johannes.sna.math.FixedSampleSizeDiscretizer;
import playground.johannes.sna.math.Histogram;
import playground.johannes.sna.util.TXTWriter;

/**
 * @author illenberger
 *
 */
public class CreatePowerLaw {

    /**
     * @param args
     * @throws IOException 
     */
    public static void main(String[] args) throws IOException {
        DescriptiveStatistics stats = new DescriptiveStatistics();

        TDoubleDoubleHashMap hist = new TDoubleDoubleHashMap();
        for (int i = 1; i < 1000; i++)
            //         stats.addValue(Math.pow(i, -2));
            hist.put(i, Math.pow(i, -2));

        //      Discretizer d = FixedSampleSizeDiscretizer.create(stats.getValues(), 10);
        //      TDoubleDoubleHashMap hist = Histogram.createHistogram(stats, d, true);

        TXTWriter.writeMap(hist, "x", "p", "/Users/jillenberger/Desktop/powerlaw/distr.txt");

        hist = Histogram.createCumulativeHistogram(hist);

        TXTWriter.writeMap(hist, "x", "p", "/Users/jillenberger/Desktop/powerlaw/distr.cum.txt");
    }

}