NEWS

childpen 0.2.3 (2026-06-02)

Replaced T with TRUE in multiple_treatment_group_analysis() default for verbose parameter, as flagged by CRAN review.
Fixed aggregate standard errors in aggregate_estimands() to correctly implement the paper's Appendix G inference formulas.
multiple_treatment_group_analysis() now routes skipped-cell diagnostics (e.g. empty subgroups) through the verbose argument; previously these printed unconditionally to the console.
simulate_data() now saves and restores the caller's RNG state on exit, so it no longer alters the global random stream. Generated output is unchanged. seed = NULL is now accepted to draw from the current RNG without reseeding.

Rewrote simulate_data() with a self-contained DGP: lifecycle earnings, gender gap, selection on treatment timing, and gendered treatment effects. No internal data dependencies.
Removed internal datasets (male_profiles, female_params, variance_params) and related documentation.
Rewrote vignettes to focus on estimator usage and interpretation rather than truth/counterfactual comparisons.
Fixed CRAN check: restricted data.table threads to 1 in all vignettes and tests to comply with CRAN's 2-core policy.
Added inst/CITATION for the underlying paper.

Fixed URL redirects flagged by CRAN incoming checks.
Replaced \dontrun{} with \donttest{} in all examples.
Fixed broken examples in single_treatment_group_analysis() and aggregate_estimands().

Added aggregate_estimands() to aggregate individual estimands into population-level child penalty estimates.
Added vignettes: NTD identification, TD identification, DID estimation, estimation, validation tests, aggregation, and notation reference.
Added comprehensive testthat test suite (72 tests across all exported functions).
Added GitHub Actions R CMD check CI workflow.
Renamed NTD estimands for consistency with the identification framework in Leventer (2025).
Fixed prep_data_table() to handle haven_labelled columns from survey data imported with haven.

Initial release with core functions: simulate_data(), single_treatment_group_analysis(), and multiple_treatment_group_analysis().