demo.Demo.java Source code

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Here is the source code for demo.Demo.java

Source

/*******************************************************************************
 * Copyright (C) 2014 Francois Petitjean
 * 
 * This file is part of Chordalysis.
 * 
 * Chordalysis 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, version 3 of the License.
 * 
 * Chordalysis 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 Chordalysis.  If not, see <http://www.gnu.org/licenses/>.
 ******************************************************************************/
package demo;

import java.io.BufferedOutputStream;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.URL;

import model.DecomposableModel;
import weka.core.Instances;
import weka.core.converters.CSVLoader;
import explorer.ChordalysisModelling;

public class Demo {

    /**
     * @param args
     * @throws IOException 
     */
    public static void main(String[] args) throws IOException {

        CSVLoader loader = new CSVLoader();
        System.out.println("Downloading dataset...");
        URL oracle = new URL("http://repository.seasr.org/Datasets/UCI/csv/mushroom.csv");
        File csvFile = File.createTempFile("data-", ".csv");
        BufferedReader in = new BufferedReader(new InputStreamReader(oracle.openStream()));
        PrintWriter out = new PrintWriter(new BufferedOutputStream(new FileOutputStream(csvFile)));
        String inputLine;
        while ((inputLine = in.readLine()) != null) {
            out.println(inputLine);
        }
        in.close();
        out.close();
        System.out.println("Dataset written to: " + csvFile.getAbsolutePath());

        loader.setFile(csvFile);
        loader.setNominalAttributes("first-last");
        Instances instances = loader.getDataSet();
        String[] variablesNames = new String[instances.numAttributes()];
        for (int i = 0; i < variablesNames.length; i++) {
            variablesNames[i] = instances.attribute(i).name();
        }

        ChordalysisModelling modeller = new ChordalysisModelling(0.05);

        System.out.println("Learning...");
        modeller.buildModel(instances);
        DecomposableModel bestModel = modeller.getModel();
        bestModel.display(variablesNames);
        System.out.println("The model selected is:");
        System.out.println(bestModel.toString(variablesNames));
        bestModel.display(variablesNames);

    }
}