depower 2026.1.30

New Features

• Add functions add_power_ci() and add_power_pi() for confidence intervals and prediction intervals of the power estimate, respectively.
  • They add uncertainty intervals for power to the object return by power().
  • Function plot.depower() will add shaded regions for the intervals.
• Add functions eval_power_ci() and eval_power_pi() for confidence intervals and prediction intervals of the power estimate, respectively.
  • In contrast to the add_power_*() variants, these are for planning power simulation studies.
  • Assess uncertainty in hypothetical simulation-based power estimates before committing computational time to a simulation run.

Other Updates

• General improvements in documentation.

depower 2025.10.21

New Features

• Add functions asymptotic() and simulated() for specification of type of test.
• Add argument distribution to functions:
  • wald_test_nb()
  • wald_test_bnb()
  • lrt_nb()
  • lrt_bnb()
  for control of running an asymptotic, randomization, or parametric simulation test.

Bug Fixes

• Fix bug where equal_dispersion argument in function lrt_nb() was not passed downstream and instead fixed to FALSE.
• Fix calculation of confidence limits for mean2 and dispersion2 in functions glm_nb(), glmm_bnb(), and glmm_poisson().

Other Updates

• Add and update tolerances in tests.
• General improvements in documentation.
• General improvements in code.

depower 2025.1.20

• Fix typos in documentation.
• Fix test error resulting from ATLAS numerical differences.

depower 2024.12.4

First release to CRAN.

New Features

• Power
  • power()
• Plot
  • plot.depower()
• Simulate
  • sim_log_lognormal()
  • sim_nb()
  • sim_bnb()
• Test
  • t_test_welch()
  • t_test_paired()
  • wald_test_nb()
  • wald_test_bnb()
  • lrt_nb()
  • lrt_bnb()
  • glm_nb()
  • glmm_bnb()
  • glmm_poisson()
• MLE
  • mle_nb_null() and mle_nb_alt()
  • mle_bnb_null() and mle_bnb_alt()
• Log-likelihood
  • nll_nb_null() and nll_nb_alt()
  • nll_bnb_null() and nll_bnb_alt()

depower 2024.8.1

Proof of concept.