Example usage for weka.clusterers HierarchicalClusterer graph

Introduction

In this page you can find the example usage for weka.clusterers HierarchicalClusterer graph.

Prototype

@Override
    public String graph() throws Exception 

Source Link

Usage

From source file:Clustering.WekaHierarchicalClustererWrapper.java

@Override
public String cluster(HashMap<String, List> data) {

    try {//from  ww  w .j  a  v  a  2  s  . com
        File arff = m_ArffExporter.getArff(data);
        if (arff == null)
            return null;

        FileInputStream is = new FileInputStream(arff.getAbsolutePath());
        Instances instances = ConverterUtils.DataSource.read(is);
        is.close();

        HierarchicalClusterer cl = new HierarchicalClusterer();

        String[] options = new String[6];
        options[0] = "-N"; // number of clusters should be "1"
        options[1] = "1";
        options[2] = "-L"; // linking type
        options[3] = m_LinkType;
        options[4] = "-A";
        options[5] = m_DistanceFunction;

        cl.setOptions(options);

        cl.buildClusterer(instances);

        String newickString = cl.graph();

        if (!arff.delete())
            arff.deleteOnExit();

        return newickString;

    } catch (Exception ex) {
        //System.out.println( "[EXCEPTION] " + ex.toString() );
        m_LastErrorMessage = ex.getMessage();
        return null;
    }
}

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