simtrial 0.4.0

New features

• rmst() introduces the RMST test (#188, thanks, @LittleBeannie).
• milestone() introduces the milestone test (#199, #204, #211, #237, thanks, @LittleBeannie).
• sim_gs_n() provides an experimental implementation for fixed sample size group sequential design simulation, with unit tests upcoming
  (#195, #201, #208, #212, thanks, @LittleBeannie and @jdblischak).
• create_cut() allows users to create custom interim and final analyses cuttings based on their specific requirements (#201, #221, thanks, @jdblischak).
• create_test() enables users to create various testing approaches for interim and final analyses (#215, #221, thanks, @jdblischak).
• multitest() gives users the option to perform multiple tests on a simulated dataset (#215, thanks, @jdblischak). Note: This function is still experimental and may be improved in future releases, as it was created prior to the standardization of test functions in #227.
• Test outputs (logrank, weighted logrank, RMST, milestone, MaxCombo) are now unified as a list including method, parameter, estimate, se, z-value, and p-value (#227, thanks, @LittleBeannie).

Bug fixes

• Fixed incorrect weights generated by early_zero() under stratified designs (#233, thanks, @LittleBeannie).

Documentation

• Enhanced documentation for get_analysis_date() (#186, thanks, @LittleBeannie).

Dependency

• Removed dependency on the bshazard package as it was archived by CRAN (#234, thanks, @nanxstats).