class ChiSquaredFeatureRanker extends AbstractFeatureRanker {

    @Override
    public FeatureRanking rankFeatures(Dataset dataset, ProgressReporter progress) {
        Validate.notNull(dataset, "dataset must not be null");
        NumericMatrix<String> chiSquareMatrix = calculateChiSquareValues(dataset, progress);
        return mergingStrategy.merge(chiSquareMatrix);
    }

    public  ChiSquaredFeatureRanker(SelectedFeatureMergingStrategy mergingStrategy);

}