Function to reverse the ordering/numbering of the grouping variables?

[ddsjoberg]

This could be its own function or an argument in ard_strata()

For example, would it make more sense if these groups were reversed?

cards::ard_strata(cards::ADSL, .by = ARM, .f = ~ cards::ard_continuous(.x, by = SEX, variables = AGE))
#> {cards} data frame: 48 x 12
#>    group1 group1_level group2 group2_level variable stat_name stat_label   stat
#> 1     SEX            F    ARM      Placebo      AGE         N          N     53
#> 2     SEX            F    ARM      Placebo      AGE      mean       Mean 76.358
#> 3     SEX            F    ARM      Placebo      AGE        sd         SD  8.733
#> 4     SEX            F    ARM      Placebo      AGE    median     Median     78
#> 5     SEX            F    ARM      Placebo      AGE       p25         Q1     70
#> 6     SEX            F    ARM      Placebo      AGE       p75         Q3     84
#> 7     SEX            F    ARM      Placebo      AGE       min        Min     59
#> 8     SEX            F    ARM      Placebo      AGE       max        Max     89
#> 9     SEX            M    ARM      Placebo      AGE         N          N     33
#> 10    SEX            M    ARM      Placebo      AGE      mean       Mean 73.364
#> ℹ 38 more rows
#> ℹ Use `print(n = ...)` to see more rows
#> ℹ 4 more variables: context, fmt_fn, warning, error

^{Created on 2024-10-02 with reprex v2.1.1}