expit                   Calculate expit (inverse logit)
logit                   Calculate logit
mods2018                SVD-Comp models data set - 'mods2018'
mods2022                SVD-Comp models data set - 'mods2022'
mods2024                SVD-Comp models data set - 'mods2024'
q1to5                   Convert life table probabilities of Dying from
                        1-year to standard 5-year age groups
qx                      Generate 1qx or 5qx age schedule of mortality
                        from child or child/adult mortality
