am_covariance_structure
                        Compute Diagonal plus Low Rank equilibrium
                        covariance structure
am_equilibrium_parameters
                        Functions to compute equilibrium parameters
                        under assortative mating
am_simulate             Simulate genotype/phenotype data under
                        equilibrium univariate AM.
rb_dplr                 Binary random variates with Diagonal Plus Low
                        Rank (dplr) correlations
rb_unstr                Binary random variates with unstructured
                        correlations
