public static J48 ByARFF(string ARFF, string count)
{
java.io.StringReader ArffReader = new java.io.StringReader(ARFF);
ArffLoader.ArffReader ARFFData = new ArffLoader.ArffReader(ArffReader, Convert.ToInt32(count), true);
Instances structure = ARFFData.getStructure();
structure.setClassIndex(structure.numAttributes() - 1);
Instance inst;
while ((inst = ARFFData.readInstance(structure)) != null)
{
structure.add(inst);
}
//Instances data = ARFFData.getData();
//J48 cls = new J48();
//cls.buildClassifier(data);
//String[] options = new String[1];
//options[0] = "-U"; // unpruned tree
J48 tree = new J48(); // new instance of tree
//tree.setOptions(options); // set the options
tree.buildClassifier(structure); // build classifier
return(tree);
}
public static Instances LoadInstancesFromWekaArff(string fileName)
{
var bufferedReader = new BufferedReader(new FileReader(fileName));
var arffReader = new ArffLoader.ArffReader(bufferedReader);
var instances = arffReader.getData();
bufferedReader.close();
instances.setClassIndex(instances.numAttributes() - 1);
return(instances);
}
public static J48 ByHeaderAndData(string header, string dataARFF)
{
java.io.StringReader ArffReader = new java.io.StringReader(header);
ArffLoader.ArffReader ARFFData = new ArffLoader.ArffReader(ArffReader, 100, false);
Instances structure = ARFFData.getStructure();
structure.setClassIndex(structure.numAttributes() - 1);
ArffReader = new java.io.StringReader(dataARFF);
Instances data = ARFFData.getData();
Instance inst;
while ((inst = ARFFData.readInstance(data)) != null)
{
structure.add(inst);
}
J48 tree = new J48(); // new instance of tree
tree.buildClassifier(structure); // build classifier
return(tree);
}
