PermBiclust.beta.ks     'SCBiclust' method for identifying means-based
                        biclusters with Kolmogorov-Smirnov test of
                        feature weights
PermBiclust.sigclust    'SCBiclust' method for identifying means-based
                        biclusters
PermBiclust.sigclust_stop
                        'SCBiclust' method for identifying means-based
                        biclusters with optional cluster significance
                        testing
PermHclust.sigclust     'SCBiclust' method for identifying
                        hierarchically clustered biclusters
VarPermBiclust.chisqdiff
                        'SCBiclust' method for identifying
                        variance-based biclusters
