aggregate_df            Aggregate data across an entire data frame
                        using sufficient statistics
as.APC.NA.df            Create NA structure across age, period and
                        cohort groups based on strata
as.APC.df               Add 1-indexed APC columns to data frame,
                        handling numeric or categorical age/period
fit_MAPC                Fit a multivariable age-period-cohort model
fit_all_MAPC            Fit all configurations of MAPC models using
                        INLA
generate_MAPC_formula   Generate MAPC formula for INLA
generate_apc_lincombs   Generate Age-Period-Cohort Linear Combinations
                        for INLA
plot_binned_counts      Plot counts of observations across bins of a
                        numeric variable, optionally stratified
plot_counts_1D          Plot counts of observations across a single
                        variable, optionally stratified
plot_counts_2D          Plot counts of observations across two
                        dimensions, optionally stratified
plot_counts_with_mean   Plot heatmap of observation counts with mean
                        overlay, optionally stratified
plot_lincombs           Plot Linear Combinations of Age-Period-Cohort
                        Effects by Strata
plot_mean_response_1D   Plot mean of a response variable across a
                        single variable, optionally stratified
plot_mean_response_2D   Plot mean of a response variable across two
                        dimensions, optionally stratified
plot_missing_data       Plot Missing Group Combinations
toy_data                Synthetic Age-Period-Cohort Dataset
validate_lincombs_against_formula
                        Validate lincomb terms against an INLA formula
