add better messaging to ard_stack_hierarchical

[alanahjonas95]

What changes are proposed in this pull request?

• Style this entry in a way that can be copied directly into NEWS.md. (#, @)

Provide more detail here as needed.

Reference GitHub issue associated with pull request. e.g., 'closes #'
closes #525

• ard_stack_hierarchical() now informs users when columns in the by argument are not present in denominator, clarifying that subjects with multiple values in those columns are counted once in the last sorted level.

---

Pre-review Checklist (if item does not apply, mark is as complete)

• All GitHub Action workflows pass with a ✅
• PR branch has pulled the most recent updates from master branch: usethis::pr_merge_main()
• If a bug was fixed, a unit test was added.
• Code coverage is suitable for any new functions/features (generally, 100% coverage for new code): devtools::test_coverage()
• Request a reviewer

Reviewer Checklist (if item does not apply, mark is as complete)

• If a bug was fixed, a unit test was added.
• Run pkgdown::build_site(). Check the R console for errors, and review the rendered website.
• Code coverage is suitable for any new functions/features: devtools::test_coverage()

When the branch is ready to be merged:

• Update NEWS.md with the changes from this pull request under the heading "# cards (development version)". If there is an issue associated with the pull request, reference it in parentheses at the end update (see NEWS.md for examples).
• All GitHub Action workflows pass with a ✅
• Approve Pull Request
• Merge the PR. Please use "Squash and merge" or "Rebase and merge".

Optional Reverse Dependency Checks:

Install checked with pak::pak("Genentech/checked") or pak::pak("checked")

# Check dev versions of `cardx`, `gtsummary`, and `tfrmt` which are in the `ddsjoberg` R Universe
Rscript -e "options(checked.check_envvars = c(NOT_CRAN = TRUE)); checked::check_rev_deps(path = '.', n = parallel::detectCores() - 2L, repos = c('https://ddsjoberg.r-universe.dev', 'https://cloud.r-project.org'))"

# Check CRAN reverse dependencies but run tests skipped on CRAN
Rscript -e "options(checked.check_envvars = c(NOT_CRAN = TRUE)); checked::check_rev_deps(path = '.', n = parallel::detectCores() - 2, repos = 'https://cloud.r-project.org')"

# Check CRAN reverse dependencies in a CRAN-like environment
Rscript -e "options(checked.check_envvars = c(NOT_CRAN = FALSE), checked.check_build_args = '--as-cran'); checked::check_rev_deps(path = '.', n = parallel::detectCores() - 2, repos = 'https://cloud.r-project.org')"

[github-actions]

Unit Tests Summary

  1 files  276 suites   18s ⏱️
276 tests 182 ✅  94 💤 0 ❌
628 runs  501 ✅ 127 💤 0 ❌

Results for commit 7675dc6.

[github-actions]

Unit Test Performance Difference

Additional test case details

Test Suite	$Status$	Time on main	$±Time$	Test Case
ard_stack_hierarchical	💚	$2.81$	$-1.03$	ard_stack_hierarchical_variables_

Results for commit aa16f90

♻️ This comment has been updated with latest results.

[github-actions]

Code Coverage Summary

Filename                       Stmts    Miss  Cover    Missing
---------------------------  -------  ------  -------  ---------------------------------------------------------------------------------------------------------------------------------------
R/add_calculated_row.R            53       6  88.68%   51-56
R/apply_fmt_fun.R                116       0  100.00%
R/ard_attributes.R                46       1  97.83%   57
R/ard_formals.R                   13       0  100.00%
R/ard_hierarchical.R             104      12  88.46%   88-93, 187-192
R/ard_identity.R                  13       0  100.00%
R/ard_missing.R                   70       7  90.00%   45-50, 61
R/ard_mvsummary.R                 54       7  87.04%   76-81, 100
R/ard_pairwise.R                  50       0  100.00%
R/ard_stack_hierarchical.R       286       0  100.00%
R/ard_stack.R                     98       0  100.00%
R/ard_strata.R                    38       0  100.00%
R/ard_summary.R                  200       8  96.00%   87-92, 226-227
R/ard_tabulate_rows.R             12       0  100.00%
R/ard_tabulate_value.R            85       8  90.59%   51-56, 73, 97
R/ard_tabulate.R                 629     103  83.62%   108-113, 194, 271, 310, 400, 412-415, 547, 607-612, 643, 819-823, 829-842, 873, 880-885, 889-908, 944-954, 958-977, 981-985, 1015, 1048
R/ard_total_n.R                   19       0  100.00%
R/as_card_fn.R                     8       0  100.00%
R/as_card.R                       14       0  100.00%
R/as_nested_list.R                41       0  100.00%
R/bind_ard.R                      49      11  77.55%   74-85
R/cards-package.R                  1       1  0.00%    14
R/check_ard_structure.R           55       5  90.91%   35-39
R/compare_ard_helpers.R          127      32  74.80%   44-50, 66-69, 113, 148, 153, 158-184, 227, 230
R/compare_ard.R                   26       0  100.00%
R/default_stat_labels.R           20       0  100.00%
R/deprecated.R                    34      30  11.76%   40-41, 56-73, 88-134
R/diff_ard_hierarchical.R        227       0  100.00%
R/eval_capture_conditions.R       30       0  100.00%
R/filter_ard_hierarchical.R      209       0  100.00%
R/get_ard_statistics.R            20       0  100.00%
R/maximum_variable_value.R        13       0  100.00%
R/mock.R                         137       2  98.54%   116, 245
R/nest_for_ard.R                  80       1  98.75%   64
R/print_ard_conditions.R          83       0  100.00%
R/print.R                         77       2  97.40%   190-191
R/process_selectors.R            116       1  99.14%   326
R/rename_ard_columns.R            84       0  100.00%
R/rename_ard_groups.R             60       0  100.00%
R/replace_null_statistic.R        11       0  100.00%
R/round5.R                         1       0  100.00%
R/selectors.R                     23       0  100.00%
R/shuffle_ard.R                  167       0  100.00%
R/sort_ard_hierarchical.R        195       0  100.00%
R/summary_functions.R             25       1  96.00%   59
R/tidy_ard_order.R                42       0  100.00%
R/tidy_as_ard.R                   40       0  100.00%
R/unlist_ard_columns.R            28       0  100.00%
R/update_ard.R                    60       6  90.00%   54-59
R/utils.R                         32       1  96.88%   37
TOTAL                           4021     245  93.91%

Diff against main

Filename                      Stmts    Miss  Cover
--------------------------  -------  ------  --------
R/ard_stack_hierarchical.R      +14       0  +100.00%
TOTAL                           +14       0  +0.02%

Results for commit: 705416a

Minimum allowed coverage is 80%

♻️ This comment has been updated with latest results