optimize_bigM           Optimize the M parameter during denovo stacks
                        assembly
optimize_m              Optimize the m parameter during denovo stacks
                        assembly
optimize_n              Optimize the n parameter during denovo stacks
                        assembly
vis_depth               Visualize the effect of varying the m parameter
                        on the mean depth of each sample
vis_loci                Visualize the effect of varying a stacks
                        parameter on the number of polymorphic loci
                        retained
vis_snps                Visualize the effect of varying a stacks
                        parameter on the number of SNPs retained
