pbd_LR                  Bootstrap likelihood ratio test of protracted
                        birth-death model of diversification
pbd_ML                  Maximization of loglikelihood under protracted
                        birth-death model of diversification
pbd_bootstrap           Bootstrap analysis under protracted birth-death
                        model of diversification
pbd_brts_density        Node depth probbaility density for protracted
                        birth-death model of diversification
pbd_durspec_cumdensity
                        Cumulative density of duration of speciation
                        under protracted birth-death model of
                        diversification
pbd_durspec_density     Probability density for duration of speciation
                        under protracted birth-death model of
                        diversification
pbd_durspec_mean        Mean duration of speciation under protracted
                        birth-death model of diversification
pbd_durspec_mean_impl   Actual calculation of the mean duration of
                        speciation (equations 19 and 20 of reference
                        article) assuming all inputs are correct
pbd_durspec_mode        mode of the duration of speciation under
                        protracted birth-death model of diversification
pbd_durspec_moment      Moments of duration of speciation under
                        protracted birth-death model of diversification
pbd_durspec_quantile    Quantiles of duration of speciation under
                        protracted birth-death model of diversification
pbd_durspec_var         Variance in duration of speciation under
                        protracted birth-death model of diversification
pbd_loglik              Loglikelihood for protracted birth-death model
                        of diversification
pbd_mean_durspec        Calculate the mean duration of speciation
                        (equations 19 and 20 of reference article),
                        non-vectorized
pbd_mean_durspecs       Calculate the mean durations of speciation
                        (equations 19 and 20 of reference article)
pbd_numspec_mean        Mean number of species under protracted
                        birth-death model of diversification
pbd_numspec_median      Median number of species under protracted
                        birth-death model of diversification
pbd_numspec_quantile    Number of species for a given quantile under
                        protracted birth-death model of diversification
pbd_numspec_vec         Mean number of good and incipient species under
                        protracted birth-death model of diversification
pbd_numspec_vec2        Mean number of good species with n incipient
                        species and of n orphaned incipient species
                        under protracted birth-death model of
                        diversification
pbd_sim                 Function to simulate the protracted speciation
                        process
pbd_sim_checked         Checked and safer version of PBD::pbd_sim
pbd_sim_cpp             Function to simulate the approximate protracted
                        speciation process
