ATCbyDrug               Fully Nested ATC2 → ATC4 → Drug (CMDECOD) Table
                        by Treatment (wide)
SOCbyPT                 SOC → PT summary by treatment (wide), with
                        optional BY-grouping, SOC totals, UNCODED
                        positioning, BY-specific Big-N, and optional
                        Big-N printing
SOCbyPT_Grade           SOC → PT summary by treatment with Grade split
                        (wide)
freq_by                 Frequency Table by Group (wide): n (%) with
                        flexible ordering and formats
freq_by_line            One-Line Frequency Summary by Treatment Group
generate_compare_report
                        Compare DEV vs VAL datasets (PROC
                        COMPARE-style) with robust file detection
get_column_info         Extract Column Metadata from a Data Frame
get_data                Load Data Files of Various Formats
mean_by                 Summary Table: Mean and Related Statistics by
                        Group
sas_round               SAS-Compatible Rounding
