DUBStepR                DUBStepR - Obtain a list of feature genes to
                        characterise cell types
findElbow               Find the Elbow in a Curve
getCorrelationRange     Compute the correlation range values for all
                        genes in the gene-gene correlation matrix.
getFilteredData         Filter the dataset by removing lowly expressed
                        genes and mitochondrial, spike-in and ribosomal
                        genes
getGGC                  Compute the correlation range values for all
                        genes in the gene-gene correlation matrix
getOptimalFeatureSet    Determine the optimal feature set using Density
                        Index (DI)
logNormalize            Log-transform and normalize data by sequencing
                        depth
pbmc_norm_small_data    Small PBMC dataset
runStepwiseReg          Run step-wise regression to order the features
