protected void setValidationDataSet(DataSetAggregated validationDataSet) {
   this.validationDataSet = validationDataSet;
   this.size = validationDataSet.size();
   this.validationRows =
       DataSetToValidationRows.convert(
           this.validationDataSet,
           this.nameOfDependentParameter,
           this.namesOfIndependentParameters);
 }
 /**
  * @param validationDataSet the measured data against which prediction functions should be
  *     validated
  * @param nameOfDependentParameter the name of the dependent parameter in the dataset
  * @param namesOfIndependentParameters the names of the independent parameters in the dataset
  */
 public ValidationObject(
     DataSetAggregated validationDataSet,
     String nameOfDependentParameter,
     List<String> namesOfIndependentParameters) {
   super();
   this.validationDataSet = validationDataSet;
   this.size = validationDataSet.size();
   this.nameOfDependentParameter = nameOfDependentParameter;
   this.namesOfIndependentParameters = namesOfIndependentParameters;
   this.validationRows =
       DataSetToValidationRows.convert(
           this.validationDataSet,
           this.nameOfDependentParameter,
           this.namesOfIndependentParameters);
 }