public static void classifierTwo(string classifierFileName, string predictionModel) { FileReader javaFileReader = new FileReader(classifierFileName); weka.core.Instances wekaInsts = new weka.core.Instances(javaFileReader); javaFileReader.close(); wekaInsts.setClassIndex(wekaInsts.numAttributes() - 1); //Classifier nbTree = (Classifier)SerializationHelper.read(Model) as J48; Instances testDataSet = new Instances(new BufferedReader(new FileReader(classifierFileName))); testDataSet.setClassIndex(wekaInsts.numAttributes() - 1); //testDataSet.setClassIndex(10); Evaluation evaluation = new Evaluation(testDataSet); J48 model = new J48(); //Classifier myClassifier = (Classifier)SerializationHelper.read(Model) as NaiveBayes; //Classifier myClassifier = new NaiveBayes(); for (int i = 0; i < testDataSet.numInstances(); i++) { Instance instance = testDataSet.instance(i); //evaluation.evaluateModelOnceAndRecordPrediction(myClassifier, instance); //evaluation.evaluateModelOnce(myClassifier, instance); } foreach (object o in evaluation.predictions().toArray()) { NominalPrediction prediction = o as NominalPrediction; if (prediction != null) { double[] distribution = prediction.distribution(); double predicted = prediction.predicted(); for (int i = 0; i < distribution.Length; i++) { System.Console.WriteLine(distribution[i]); } System.Console.WriteLine(predicted); } } System.Console.WriteLine(evaluation); System.Console.ReadKey(); }
public static void classifierOne(string classifierFileName, string predictionModel) { FileReader javaFileReader = new FileReader(classifierFileName); weka.core.Instances wekaInsts = new weka.core.Instances(javaFileReader); javaFileReader.close(); wekaInsts.setClassIndex(wekaInsts.numAttributes() - 1); Classifier cl = new SMO(); //Classifier cl = new NaiveBayes(); java.util.Random random = new java.util.Random(1); Evaluation evaluation = new Evaluation(wekaInsts); evaluation.crossValidateModel(cl, wekaInsts, 10, random); foreach (object o in evaluation.getMetricsToDisplay().toArray()) { } int count = 0; StringBuilder sb = new StringBuilder(); foreach (object o in evaluation.predictions().toArray()) { NominalPrediction prediction = o as NominalPrediction; if (prediction != null) { double[] distribution = prediction.distribution(); double predicted = prediction.predicted(); double actual = prediction.actual(); string revision = prediction.getRevision(); double weight = prediction.weight(); double margine = prediction.margin(); //bool equals = prediction.@equals(); string distributions = String.Empty; for (int i = 0; i < distribution.Length; i++) { //System.Console.WriteLine(distribution[i]); distributions += distribution[i]; } var predictionLine = String.Format("{0} - {1} - {2} - {3} - {4} - {5}\n", actual, predicted, revision, weight, margine, distributions); sb.Append(predictionLine); //System.Console.WriteLine(predicted); } count++; } File_Helper.WriteToFile(sb, predictionModel + "NbCl.txt"); System.Console.WriteLine(count); System.Console.ReadKey(); }