How to use

getDerivedFields

method

in

org.dmg.pmml.LocalTransformations

public LocalTransformations addDerivedFields(DerivedField... derivedFields) {
  getDerivedFields().addAll(Arrays.asList(derivedFields));
  return this;
}

public LocalTransformations addDerivedFields(DerivedField... derivedFields) {
  getDerivedFields().addAll(Arrays.asList(derivedFields));
  return this;
}

public static Map<FieldName, DerivedField> getDerivedFieldMap(LocalTransformations localTransformations) {
  Map<FieldName, DerivedField> derivedFieldMap = new HashMap<FieldName, DerivedField>();
  for(DerivedField derivedField: localTransformations.getDerivedFields()) {
    derivedFieldMap.put(derivedField.getName(), derivedField);
  }
  return derivedFieldMap;
}

  @Override
  public Map<FieldName, DerivedField> load(LocalTransformations localTransformations){
    return IndexableUtil.buildMap(localTransformations.getDerivedFields());
  }
});

public static Map<FieldName, DerivedField> getDerivedFieldMap(LocalTransformations localTransformations) {
  Map<FieldName, DerivedField> derivedFieldMap = new HashMap<FieldName, DerivedField>();
  for(DerivedField derivedField: localTransformations.getDerivedFields()) {
    derivedFieldMap.put(derivedField.getName(), derivedField);
  }
  return derivedFieldMap;
}

private void processLocalTransformations(LocalTransformations localTransformations){
  if(localTransformations.hasDerivedFields()){
    List<DerivedField> derivedFields = localTransformations.getDerivedFields();
    Set<DerivedField> activeDerivedFields = getActiveDerivedFields(new HashSet<>(derivedFields));
    derivedFields.retainAll(activeDerivedFields);
  }
}

private void processLocalTransformations(LocalTransformations localTransformations){
  if(localTransformations.hasDerivedFields()){
    List<DerivedField> derivedFields = localTransformations.getDerivedFields();
    Set<DerivedField> activeDerivedFields = getActiveDerivedFields(new HashSet<>(derivedFields));
    derivedFields.retainAll(activeDerivedFields);
  }
}

@Override
public VisitorAction visit(LocalTransformations localTransformations){
  if(localTransformations.hasDerivedFields()){
    this.localDerivedFields.addAll(localTransformations.getDerivedFields());
  }
  return super.visit(localTransformations);
}

@Override
public VisitorAction visit(LocalTransformations localTransformations){
  if(localTransformations.hasDerivedFields()){
    this.localDerivedFields.addAll(localTransformations.getDerivedFields());
  }
  return super.visit(localTransformations);
}

@Override
public VisitorAction visit(LocalTransformations localTransformations){
  if(localTransformations.hasDerivedFields()){
    suppress(localTransformations.getDerivedFields());
  }
  return super.visit(localTransformations);
}

@Override
public VisitorAction visit(LocalTransformations localTransformations){
  if(localTransformations.hasDerivedFields()){
    suppress(localTransformations.getDerivedFields());
  }
  return super.visit(localTransformations);
}

@Override
public VisitorAction visit(Model model){
  LocalTransformations localTransformations = model.getLocalTransformations();
  if(localTransformations != null && localTransformations.hasDerivedFields()){
    declare(model, localTransformations.getDerivedFields());
  }
  return super.visit(model);
}

@Override
public VisitorAction visit(Model model){
  LocalTransformations localTransformations = model.getLocalTransformations();
  if(localTransformations != null && localTransformations.hasDerivedFields()){
    declare(model, localTransformations.getDerivedFields());
  }
  return super.visit(model);
}

private LocalTransformations getLocalTranformations(NeuralNetwork model) {
  // delete target
  List<DerivedField> derivedFields = model.getLocalTransformations().getDerivedFields();
  // add bias
  DerivedField field = new DerivedField(OpType.CONTINUOUS, DataType.DOUBLE).withName(new FieldName(
      PluginConstants.biasValue));
  field.withExpression(new Constant(String.valueOf(PluginConstants.bias)));
  derivedFields.add(field);
  return new LocalTransformations().withDerivedFields(derivedFields);
}

private void expandDerivedFields(Model model, Set<Field<?>> fields){
  FieldDependencyResolver fieldDependencyResolver = getFieldDependencyResolver();
  fieldDependencyResolver.expand(fields, fieldDependencyResolver.getGlobalDerivedFields());
  LocalTransformations localTransformations = model.getLocalTransformations();
  if(localTransformations != null && localTransformations.hasDerivedFields()){
    fieldDependencyResolver.expand(fields, new HashSet<>(localTransformations.getDerivedFields()));
  }
}

private void expandDerivedFields(Model model, Set<Field<?>> fields){
  FieldDependencyResolver fieldDependencyResolver = getFieldDependencyResolver();
  fieldDependencyResolver.expand(fields, fieldDependencyResolver.getGlobalDerivedFields());
  LocalTransformations localTransformations = model.getLocalTransformations();
  if(localTransformations != null && localTransformations.hasDerivedFields()){
    fieldDependencyResolver.expand(fields, new HashSet<>(localTransformations.getDerivedFields()));
  }
}

  @Override
  public VisitorAction visit(MiningModel miningModel){
    LocalTransformations localTransformations = miningModel.getLocalTransformations();
    String id;
    try {
      Segment segment = (Segment)getParent();
      id = segment.getId();
    } catch(ClassCastException cce){
      id = null;
    } // End try
    if(id == null){
      checkFields(FieldNameUtil.create("x12"), localTransformations.getDerivedFields());
    } else
    if("first".equals(id)){
      checkFields(FieldNameUtil.create("x123", "x1234", "x12345"), localTransformations.getDerivedFields());
    } else
    if("second".equals(id)){
      assertNull(localTransformations);
    } else
    {
      throw new AssertionError();
    }
    return super.visit(miningModel);
  }
};

@Override
public VisitorAction visit(RegressionModel regressionModel){
  LocalTransformations localTransformations = regressionModel.getLocalTransformations();
  Segment segment = (Segment)getParent();
  String id = segment.getId();
  if("first".equals(id)){
    assertNull(localTransformations);
  } else
  if("second".equals(id)){
    checkFields(FieldNameUtil.create("x2_squared"), localTransformations.getDerivedFields());
  } else
  if("third".equals(id)){
    assertNull(localTransformations);
  } else
  if("sum".equals(id)){
    assertNull(localTransformations);
  } else
  {
    throw new AssertionError();
  }
  return super.visit(regressionModel);
}

@Override
public VisitorAction accept(Visitor visitor) {
  VisitorAction status = visitor.visit(this);
  if (status == VisitorAction.CONTINUE) {
    visitor.pushParent(this);
    if ((status == VisitorAction.CONTINUE)&&hasExtensions()) {
      status = org.dmg.pmml.PMMLObject.traverse(visitor, getExtensions());
    }
    if ((status == VisitorAction.CONTINUE)&&hasDerivedFields()) {
      status = org.dmg.pmml.PMMLObject.traverse(visitor, getDerivedFields());
    }
    visitor.popParent();
  }
  if (status == VisitorAction.TERMINATE) {
    return VisitorAction.TERMINATE;
  }
  return VisitorAction.CONTINUE;
}

@Override
public VisitorAction accept(Visitor visitor) {
  VisitorAction status = visitor.visit(this);
  if (status == VisitorAction.CONTINUE) {
    visitor.pushParent(this);
    if ((status == VisitorAction.CONTINUE)&&hasExtensions()) {
      status = org.dmg.pmml.PMMLObject.traverse(visitor, getExtensions());
    }
    if ((status == VisitorAction.CONTINUE)&&hasDerivedFields()) {
      status = org.dmg.pmml.PMMLObject.traverse(visitor, getDerivedFields());
    }
    visitor.popParent();
  }
  if (status == VisitorAction.TERMINATE) {
    return VisitorAction.TERMINATE;
  }
  return VisitorAction.CONTINUE;
}