code: protected boolean canDiscardPredictions() {
      switch (m_Owner.getEvaluation().getSelectedTag().getID()) {
        case DefaultEvaluationMetrics.EVALUATION_AUC:
        case DefaultEvaluationMetrics.EVALUATION_PRC:
          return false;
        default:
          return true;
      }
    }
docs: Returns whether predictions can be discarded (depends on selected measure).