UKmortality             General population survival data.
determine_registry_years
                        Calculate yearly dates.
functional_form_age     View the suitability of a linear effect of age
                        on hazard.
incidence               Summarise disease incidence.
incidence_age_distribution
                        Plot the age distribution of incident cases.
mean_incidence_rate     Mean disease incidence.
plot.incidence          Visualise disease incidence.
plot.survfit.prev       Plot bootstrapped survival curves.
population_survival_rate
                        Transform yearly mortality rates to daily.
prevalence              Estimate point prevalence at an index date.
prevalence_counted      Count prevalence from registry data.
prevalence_simulated    Estimate prevalence using Monte Carlo
                        simulation.
prevsim                 Simulated patient dataset.
raw_incidence           Disease incidence.
rprev                   rprev: Estimate disease point prevalence using
                        a combination of registry data and Monte Carlo
                        simulations.
summary.survfit.prev    Obtain N-year survival probability estimates.
survfit.prevalence      Form bootstrapped survival curves.
test_incidence_fit      Test homogeneous Poisson assumption of disease
                        incidence.
test_prevalence_fit     Test simulated prevalence fit.
