Examples of weka.core.Instances.classAttribute()

weka.core.Instances.classAttribute()
Returns the class attribute. @return the class attribute @throws UnassignedClassException if the class is not set

       m_Classifier.buildClassifier(trainData);
       m_BestClassifierOptions = m_InitOptions;
       return;
    }


    if (trainData.classAttribute().isNominal()) {
      trainData.stratify(m_NumFolds);
    }
    m_BestClassifierOptions = null;
    
    // Set up m_ClassifierOptions -- take getOptions() and remove

View Full Code Here

            data.setClassIndex(data.numAttributes() - 1);
        } else {
            data.setClassIndex(m_ClassIndex);
        }


        if (data.classAttribute().type() != Attribute.NOMINAL) {
            throw new Exception("Class attribute must be nominal");
        }
        int numClasses = data.numClasses();


        data.deleteWithMissingClass();

View Full Code Here

    if (m_ClassIndex < 0) {
      data.setClassIndex(data.numAttributes() - 1);
    } else {
      data.setClassIndex(m_ClassIndex);
    }
    if (data.classAttribute().type() != Attribute.NOMINAL) {
      throw new Exception("Class attribute must be nominal");
    }
    int numClasses = data.numClasses();


    data.deleteWithMissingClass();

View Full Code Here

    data   = source.getDataSet();
    if (getClassIndex() == -1)
      data.setClassIndex(data.numAttributes() - 1);
    else
      data.setClassIndex(getClassIndex());
    numeric = data.classAttribute().isNumeric();


    // build classifier
    cls = AbstractClassifier.makeCopy(getClassifier());
    cls.buildClassifier(data);

View Full Code Here

              (i+1) + ". instance (Classifier/Source code): "
              + predClassifier + " != " + predSource);
        else
          System.out.println(
              (i+1) + ". instance (Classifier/Source code): "
              + data.classAttribute().value((int) predClassifier)
              + " != " + data.classAttribute().value((int) predSource));
      }
    }


    return result;

View Full Code Here

              + predClassifier + " != " + predSource);
        else
          System.out.println(
              (i+1) + ". instance (Classifier/Source code): "
              + data.classAttribute().value((int) predClassifier)
              + " != " + data.classAttribute().value((int) predSource));
      }
    }


    return result;
  }

View Full Code Here

   * the parameter matrix
   */
  private void readParamMatrix(Element model) throws Exception {


    Instances miningSchemaI = m_miningSchema.getFieldsAsInstances();
    Attribute classAtt = miningSchemaI.classAttribute();
    // used when function type is classification but class attribute is numeric
    // in the mining schema. We will assume that there is a Target specified in
    // the pmml that defines the legal values for this class.
    ArrayList<String> targetVals = null;

View Full Code Here

   */
  protected void printParameterMatrix(StringBuffer buff) {
    Instances miningSchemaI = m_miningSchema.getFieldsAsInstances();


    // get the maximum class value width (nominal)
    int maxClassWidth = miningSchemaI.classAttribute().name().length();
    if (miningSchemaI.classAttribute().isNominal()
        || miningSchemaI.classAttribute().isString()) {
      for (int i = 0; i < miningSchemaI.classAttribute().numValues(); i++) {
        if (miningSchemaI.classAttribute().value(i).length() > maxClassWidth) {
          maxClassWidth = miningSchemaI.classAttribute().value(i).length();

View Full Code Here

  protected void printParameterMatrix(StringBuffer buff) {
    Instances miningSchemaI = m_miningSchema.getFieldsAsInstances();


    // get the maximum class value width (nominal)
    int maxClassWidth = miningSchemaI.classAttribute().name().length();
    if (miningSchemaI.classAttribute().isNominal()
        || miningSchemaI.classAttribute().isString()) {
      for (int i = 0; i < miningSchemaI.classAttribute().numValues(); i++) {
        if (miningSchemaI.classAttribute().value(i).length() > maxClassWidth) {
          maxClassWidth = miningSchemaI.classAttribute().value(i).length();
        }

View Full Code Here

    Instances miningSchemaI = m_miningSchema.getFieldsAsInstances();


    // get the maximum class value width (nominal)
    int maxClassWidth = miningSchemaI.classAttribute().name().length();
    if (miningSchemaI.classAttribute().isNominal()
        || miningSchemaI.classAttribute().isString()) {
      for (int i = 0; i < miningSchemaI.classAttribute().numValues(); i++) {
        if (miningSchemaI.classAttribute().value(i).length() > maxClassWidth) {
          maxClassWidth = miningSchemaI.classAttribute().value(i).length();
        }
      }

View Full Code Here

0 1 2 3 4 5 6 7 8 9

TOP

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.