gsDesign2 1.0.5

This is the first submission to CRAN in March 2023.

Breaking changes

• Passes lintr check for the entire package (#150, #151, #171).
• Improve the documentation (#161, #163, #168, #176).

Bug fixes

• check_fail_rate() when only 1 number in fail_rate is > 0 (#132).
• gs_power_ahr() when study duration is > 48 months (#141).
• fixed_design() for event-based design (#143).
• gs_design_combo() when the test only applies to part of the analysis (#148).
• gs_info_rd() for variance calculation (#153).
• summary() for the capitalized first letter in the summary header (#164).

gsDesign2 1.0.0

The version

• merges the gsDesign2 v0.2.1 and gsdmvn;
• supports organized summary tables and gt tables;
• has power/sample size calculation for risk difference;
• has functionality for integer sample size;
• updates API (see the 1:1 map between the old API vs. new API in #84);
• fixes historical small bugs like
  • expected_accrual for the stratified population;
  • gs_spending_bound when IA is close to FA;
  • gs_power_bound when applied in the max combo test;
  • gs_design_npe for type I error;
  • ...
• develops fixed_design to implement different methods for power/sample size calculation;
• adds info_scale arguments to gs_design_xxx and gs_power_xxx;
• adds RMST and milstone methods into fixed design;
• adds and re-organizes vignettes.

gsDesign2 0.2.1

This version is the one before the merge with Merck/gsdmvn.

gsDesign2 0.2.0

This version supports the Biometrical Journal paper "A unified framework for weighted parametric group sequential design (WPGSD)" by Keaven M. Anderson, Zifang Guo, Jing Zhao, and Linda Z. Sun.