Example usage for weka.classifiers.rules OneR buildClassifier

Introduction

In this page you can find the example usage for weka.classifiers.rules OneR buildClassifier.

Prototype

@Override
public void buildClassifier(Instances instances) throws Exception 

Source Link

Document

Generates the classifier.

Usage

From source file:controller.OneRBean.java

public void calculate() {
    output = column;/*  w  ww  .ja  v  a  2s.com*/
    int index = columns.indexOf(column);
    OneR one = new OneR();
    inst.setClassIndex(index);
    inst.firstInstance();
    try {
        one.buildClassifier(inst);
        output = one.toString();// + "<br /> asdfasdfasdf";
    } catch (Exception ex) {
        Logger.getLogger(OneRBean.class.getName()).log(Level.SEVERE, null, ex);
    }
}

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From source file:epsi.i5.datamining.Weka.java

public void excutionAlgo() throws FileNotFoundException, IOException, Exception {
    BufferedReader reader = new BufferedReader(new FileReader("src/epsi/i5/data/" + fileOne + ".arff"));
    Instances data = new Instances(reader);
    reader.close();//from   ww  w .ja v a 2s .  c  om
    //System.out.println(data.attribute(0));
    data.setClass(data.attribute(0));
    NaiveBayes NB = new NaiveBayes();
    NB.buildClassifier(data);
    Evaluation naiveBayes = new Evaluation(data);
    naiveBayes.crossValidateModel(NB, data, 10, new Random(1));
    naiveBayes.evaluateModel(NB, data);
    //System.out.println(test.confusionMatrix() + "1");
    //System.out.println(test.correct() + "2");
    System.out.println("*****************************");
    System.out.println("******** Naive Bayes ********");
    System.out.println(naiveBayes.toMatrixString());
    System.out.println("*****************************");
    System.out.println("**** Pourcentage Correct ****");
    System.out.println(naiveBayes.pctCorrect());
    System.out.println("");
    J48 j = new J48();
    j.buildClassifier(data);
    Evaluation jeval = new Evaluation(data);
    jeval.crossValidateModel(j, data, 10, new Random(1));
    jeval.evaluateModel(j, data);
    System.out.println("*****************************");
    System.out.println("************ J48 ************");
    System.out.println(jeval.toMatrixString());
    System.out.println("*****************************");
    System.out.println("**** Pourcentage Correct ****");
    System.out.println(jeval.pctCorrect());
    System.out.println("");
    DecisionTable DT = new DecisionTable();
    DT.buildClassifier(data);
    Evaluation decisionTable = new Evaluation(data);
    decisionTable.crossValidateModel(DT, data, 10, new Random(1));
    decisionTable.evaluateModel(DT, data);
    System.out.println("*****************************");
    System.out.println("******* DecisionTable *******");
    System.out.println(decisionTable.toMatrixString());
    System.out.println("*****************************");
    System.out.println("**** Pourcentage Correct ****");
    System.out.println(decisionTable.pctCorrect());
    System.out.println("");
    OneR OR = new OneR();
    OR.buildClassifier(data);
    Evaluation oneR = new Evaluation(data);
    oneR.crossValidateModel(OR, data, 10, new Random(1));
    oneR.evaluateModel(OR, data);
    System.out.println("*****************************");
    System.out.println("************ OneR ***********");
    System.out.println(oneR.toMatrixString());
    System.out.println("*****************************");
    System.out.println("**** Pourcentage Correct ****");
    System.out.println(oneR.pctCorrect());

    //Polarit
    data.setClass(data.attribute(1));
    System.out.println("");
    M5Rules MR = new M5Rules();
    MR.buildClassifier(data);
    Evaluation m5rules = new Evaluation(data);
    m5rules.crossValidateModel(MR, data, 10, new Random(1));
    m5rules.evaluateModel(MR, data);
    System.out.println("*****************************");
    System.out.println("********** M5Rules **********");
    System.out.println(m5rules.correlationCoefficient());

    System.out.println("");
    LinearRegression LR = new LinearRegression();
    LR.buildClassifier(data);
    Evaluation linearR = new Evaluation(data);
    linearR.crossValidateModel(LR, data, 10, new Random(1));
    linearR.evaluateModel(LR, data);
    System.out.println("*****************************");
    System.out.println("********** linearR **********");
    System.out.println(linearR.correlationCoefficient());
}

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