List of numInstances() Examples

Examples of numInstances()

net.kuujo.vertigo.component.ModuleContext.numInstances()
net.kuujo.vertigo.component.VerticleContext.numInstances()
weka.classifiers.Evaluation.numInstances()
Gets the number of test instances that had a known class value (actually the sum of the weights of test instances with known class value). @return the number of test instances with known class
weka.core.Instances.numInstances()
Returns the number of instances in the dataset. @return the number of instances in the dataset as an integer

Examples of weka.core.Instances.numInstances()

      try{
          if(!m_DataBaseConnection.isConnected())
              connectToDatabase();
          setWriteMode(WRITE);
          writeStructure();
          for(int i = 0; i < instances.numInstances(); i++){
            writeInstance(instances.instance(i));
          }
          m_DataBaseConnection.disconnectFromDatabase();
          setWriteMode(WAIT);
          resetStructure();

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Examples of weka.core.Instances.numInstances()

      predictions.appendElements(eu.getCVPredictions(classifier, train, 10));
      Instances result = tc.getCurve(predictions, 0);
      PlotData2D pd = new PlotData2D(result);
      pd.m_alwaysDisplayPointsOfThisSize = 10;


      boolean[] connectPoints = new boolean[result.numInstances()];
      for (int i = 1; i < connectPoints.length; i++) {
        connectPoints[i] = true;
      }
      pd.setConnectPoints(connectPoints);
      final javax.swing.JFrame jf =

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Examples of weka.core.Instances.numInstances()

          : Double.POSITIVE_INFINITY;
      
      Instances cBCurve = m_costBenefit.getPlotInstances();
      int maxMinIndex = 0;
      
      for (int i = 0; i < cBCurve.numInstances(); i++) {
        Instance current = cBCurve.instance(i);
        if (max) {
          if (current.value(1) > maxMin) {
            maxMin = current.value(1);
            maxMinIndex = i;

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Examples of weka.core.Instances.numInstances()

      Instances costBenefitI = new Instances("Cost/Benefit Curve", fv, 100);
      
      // process the performance data to make this curve
      Instances performanceI = m_masterPlot.getPlotInstances();
      
      for (int i = 0; i < performanceI.numInstances(); i++) {
        Instance current = performanceI.instance(i);
        
        double[] vals = new double[2];
        vals[0] = current.value(10); // sample size
        vals[1] = (current.value(0) * tpCost

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Examples of weka.core.Instances.numInstances()

    }
    current.buildClassifier(train);
    Instances test = inst.testCV(numFolds, fold);
    m_Log.statusMessage("Evaluating model for fold "
            + (fold + 1) + "...");
    for (int jj=0;jj<test.numInstances();jj++) {
      plotInstances.process(test.instance(jj), current, eval);
      if (outputPredictionsText) {
        classificationOutput.printClassification(current, test.instance(jj), jj);
      }
    }

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Examples of weka.core.Instances.numInstances()

       
        if (outputPredictionsText) {
    printPredictionsHeader(outBuff, classificationOutput, "test split");
        }
     
        for (int jj=0;jj<test.numInstances();jj++) {
    plotInstances.process(test.instance(jj), current, eval);
    if (outputPredictionsText) { 
      classificationOutput.printClassification(current, test.instance(jj), jj);
    }
    if ((jj % 100) == 0) {

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Examples of weka.core.Instances.numInstances()

          classAtt.value(classValue)+")");
    PlotData2D tempd = new PlotData2D(result);
    tempd.setPlotName(result.relationName());
    tempd.addInstanceNumberAttribute();
    // specify which points are connected
    boolean[] cp = new boolean[result.numInstances()];
    for (int n = 1; n < cp.length; n++)
      cp[n] = true;
    tempd.setConnectPoints(cp);
    // add plot
    vmc.addPlot(tempd);

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Examples of weka.core.Instances.numInstances()

                
                PlotData2D tempd = new PlotData2D(result);
                tempd.setPlotName(result.relationName());
                tempd.m_alwaysDisplayPointsOfThisSize = 10;
                // specify which points are connected
                boolean[] cp = new boolean[result.numInstances()];
                for (int n = 1; n < cp.length; n++)
                  cp[n] = true;
                tempd.setConnectPoints(cp);
                
                String windowTitle = "";

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Examples of weka.core.Instances.numInstances()

          classAtt.value(classValue)+")");
    PlotData2D tempd = new PlotData2D(result);
    tempd.m_displayAllPoints = true;
    tempd.setPlotName(result.relationName());
    boolean [] connectPoints = 
      new boolean [result.numInstances()];
    for (int jj = 1; jj < connectPoints.length; jj+=2) {
      connectPoints[jj] = true;
    }
    tempd.setConnectPoints(connectPoints);
    //      tempd.addInstanceNumberAttribute();

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Examples of weka.core.Instances.numInstances()

          // as experiments with using simple linear regression to fill
          // the missing values that are created by default by the lagging
          // process showed inferior performance compared to just letting
          // Weka take care of it via mean/mode replacement


          for (int i = 0; i < result.numInstances(); i++) {
            Instance current = result.instance(i);
            if (current.isMissing(attIndex)) {
              if (!weka.core.Utils.isMissingValue(lastNonMissing)) {
                // Search forward to the next non missing value (if any)
                double futureNonMissing = weka.core.Utils.missingValue();

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