NEWS

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gpqyouden 0.1.0 (2026-11-06)

Initial release.

• GPQ-based confidence intervals for the Youden index and its optimal cut-point under the binormal model, following Lai, Tian and Schisterman (2012): gpq_mu(), gpq_sigma(), gpq_c(), gpq_J(), gpq_from_sample().
• Robustness study under a contaminated-normal mixture model: generate_mixture_sample(), dmixnorm(), pmixnorm(), J_true_mixture().
• Helpers to invert the Youden index for the diseased-group mean (find_mu1_from_J2(), find_mu1_from_J_mixture()), matching the parameter grid of Lai et al. (2012) via default_param_grid().
• Monte Carlo simulation drivers (run_simulation(), run_one_row(), run_parallel_grid()) and LaTeX table generation (generate_normal_tables(), generate_mixture_tables()).