Fix in ard_survival_survfit.data.frame() type conversion

[ddsjoberg]

What changes are proposed in this pull request?

• Fix in ard_survival_survfit.data.frame() method where the stratifying variable was not correctly converted back to its original type.

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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.
• If a new ard_*() function was added, it passes the ARD structural checks from cards::check_ard_structure().
• If a new ard_*() function was added, set_cli_abort_call() has been set.
• If a new ard_*() function was added and it depends on another package (such as, broom), is_pkg_installed("broom") has been set in the function call and the following added to the roxygen comments: @examplesIf do.call(asNamespace("cardx")$is_pkg_installed, list(pkg = "broom""))
• Code coverage is suitable for any new functions/features (generally, 100% coverage for new code): devtools::test_coverage()

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

• If a bug was fixed, a unit test was added.
• 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 "# cardx (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".

[github-actions]

Unit Test Performance Difference

Additional test case details

Test Suite	$Status$	Time on main	$±Time$	Test Case
ard_categorical_max	💚	$3.04$	$-1.83$	ard_categorical_max_works_with_default_settings
ard_continuous.survey.design	💔	$8.08$	$+10.08$	unstratified_ard_continuous.survey.design_works
ard_regression	💚	$3.82$	$-1.30$	ard_regression_works
ard_survival_survfit	💚	$3.49$	$-1.37$	ard_survival_survfit_works_with_times_provided
construction_helpers	💚	$2.27$	$-1.84$	construct_model_works
proportion_ci	💚	$1.74$	$-1.58$	check_the_proportion_ci__functions_work

Results for commit fec5f02

♻️ This comment has been updated with latest results.

[github-actions]

Unit Tests Summary

  1 files  181 suites   1m 17s ⏱️
179 tests 179 ✅ 0 💤 0 ❌
751 runs  751 ✅ 0 💤 0 ❌

Results for commit b28218f.

[github-actions]

Unit Tests Summary

  1 files  181 suites   1m 15s ⏱️
179 tests 140 ✅ 39 💤 0 ❌
611 runs  552 ✅ 59 💤 0 ❌

Results for commit b28218f.

[github-actions]

Code Coverage Summary

Filename                                Stmts    Miss  Cover    Missing
------------------------------------  -------  ------  -------  -----------------------------------
R/add_total_n.survey.design.R              12       0  100.00%
R/ard_aod_wald_test.R                      77       2  97.40%   93, 96
R/ard_attributes.survey.design.R            2       0  100.00%
R/ard_car_anova.R                          45       2  95.56%   62, 65
R/ard_car_vif.R                            62       1  98.39%   87
R/ard_categorical_ci.R                    320       1  99.69%   93
R/ard_categorical_ci.survey.design.R      129       1  99.22%   180
R/ard_categorical_max.R                    40       1  97.50%   58
R/ard_categorical.survey.design.R         393       8  97.96%   77, 228-231, 275, 517, 531
R/ard_continuous_ci.R                      28       1  96.43%   38
R/ard_continuous_ci.survey.design.R       138       0  100.00%
R/ard_continuous.survey.design.R          277      14  94.95%   86, 177, 187, 338, 369-370, 421-429
R/ard_dichotomous.survey.design.R          73       3  95.89%   51, 156, 161
R/ard_effectsize_cohens_d.R               103       2  98.06%   69, 122
R/ard_effectsize_hedges_g.R                91       2  97.80%   68, 120
R/ard_emmeans_mean_difference.R            88       0  100.00%
R/ard_incidence_rate.R                    104       0  100.00%
R/ard_missing.survey.design.R              82       1  98.78%   52
R/ard_regression_basic.R                   31       1  96.77%   61
R/ard_regression.R                         87       0  100.00%
R/ard_smd_smd.R                            69       5  92.75%   57, 83-86
R/ard_stats_anova.R                        95       0  100.00%
R/ard_stats_aov.R                          46       0  100.00%
R/ard_stats_chisq_test.R                   40       1  97.50%   39
R/ard_stats_fisher_test.R                  43       1  97.67%   42
R/ard_stats_kruskal_test.R                 36       1  97.22%   38
R/ard_stats_mantelhaen_test.R              67       1  98.51%   45
R/ard_stats_mcnemar_test.R                 80       2  97.50%   63, 106
R/ard_stats_mood_test.R                    49       1  97.96%   45
R/ard_stats_oneway_test.R                  39       0  100.00%
R/ard_stats_poisson_test.R                 76       1  98.68%   59
R/ard_stats_prop_test.R                    85       1  98.82%   43
R/ard_stats_t_test_onesample.R             41       0  100.00%
R/ard_stats_t_test.R                      112       2  98.21%   65, 111
R/ard_stats_wilcox_test_onesample.R        42       0  100.00%
R/ard_stats_wilcox_test.R                  99       2  97.98%   65, 117
R/ard_survey_svychisq.R                    38       1  97.37%   44
R/ard_survey_svyranktest.R                 54       1  98.15%   44
R/ard_survey_svyttest.R                    53       1  98.11%   42
R/ard_survival_survdiff.R                  89       0  100.00%
R/ard_survival_survfit_diff.R              76       0  100.00%
R/ard_survival_survfit.R                  236       5  97.88%   234-238
R/construction_helpers.R                  106      10  90.57%   160-175, 189, 248
R/proportion_ci.R                         203       1  99.51%   463
TOTAL                                    4056      77  98.10%

Diff against main

Filename                            Stmts    Miss  Cover
--------------------------------  -------  ------  -------
R/ard_continuous.survey.design.R       +3       0  +0.06%
TOTAL                                  +3       0  +0.00%

Results for commit: b28218f

Minimum allowed coverage is 80%

♻️ This comment has been updated with latest results