generateDataset         Generate simulation data for different species
Iter_optimal            Iteration to find the optimal value A iteration
                        process to compute the normalization factor to
                        identify difference expression(DE) of genes
                        between different species
orthgenes               A real dataset of orthologous genes between the
                        different species.
SCBN                    Compute the normalization factor to identify
                        difference expression (DE) of genes between
                        different species
sim_data                A simulation dataset of orthologous genes
                        between the different species.
