code: public void crossValidateSetSigma(GeneralDataset<L, F> dataset,int kfold) {
      System.err.println("##you are here.");
      crossValidateSetSigma(dataset, kfold, new MultiClassAccuracyStats<L>(MultiClassAccuracyStats.USE_LOGLIKELIHOOD), new GoldenSectionLineSearch(true, 1e-2, min, max));
    }
docs: callls the method {@link #crossValidateSetSigma(GeneralDataset, int, Scorer, LineSearcher)} with
  multi-class log-likelihood scoring (see {@link MultiClassAccuracyStats}) and golden-section line search
  (see {@link GoldenSectionLineSearch}).
  @param dataset the data set to optimize sigma on.