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gsDesign2  

Group Sequential Design with Non-Constant Effect
View on CRAN: Click here


Download and install gsDesign2 package within the R console
Install from CRAN:
install.packages("gsDesign2")

Install from Github:
library("remotes")
install_github("cran/gsDesign2")

Install by package version:
library("remotes")
install_version("gsDesign2", "1.1.7")



Attach the package and use:
library("gsDesign2")
Maintained by
Yujie Zhao
[Scholar Profile | Author Map]
All associated links for this package
First Published: 2023-03-20
Latest Update: 2025-06-27
Description:
The goal of 'gsDesign2' is to enable fixed or group sequential design under non-proportional hazards. To enable highly flexible enrollment, time-to-event and time-to-dropout assumptions, 'gsDesign2' offers piecewise constant enrollment, failure rates, and dropout rates for a stratified population. This package includes three methods for designs: average hazard ratio, weighted logrank tests in Yung and Liu (2019) , and MaxCombo tests. Substantial flexibility on top of what is in the 'gsDesign' package is intended for selecting boundaries.
How to cite:
Yujie Zhao (2023). gsDesign2: Group Sequential Design with Non-Constant Effect. R package version 1.1.7, https://cran.r-project.org/web/packages/gsDesign2. Accessed 05 Aug. 2026.
Previous versions and publish date:
(2026-07-31 01:20), 1.0.7 (2023-03-20 11:50), 1.0.8 (2023-05-01 21:40), 1.0.9 (2023-06-20 18:40), 1.1.0 (2023-08-23 17:40), 1.1.1 (2024-02-09 17:30), 1.1.2 (2024-04-09 19:40), 1.1.3 (2024-11-15 23:10), 1.1.4 (2025-06-06 22:00), 1.1.5 (2025-06-27 23:40), 1.1.6 (2025-09-11 18:10), 1.1.7 (2025-11-19 23:40), 1.1.8 (2026-02-12 20:10), 1.1.9 (2026-07-01 00:40)
Other packages that cited gsDesign2 R package
View gsDesign2 citation profile
Other R packages that gsDesign2 depends, imports, suggests or enhances
Complete documentation for gsDesign2
Functions, R codes and Examples using the gsDesign2 R package
Some associated functions: ahr . as_gt . define_enroll_rate . define_fail_rate . expected_accrual . expected_event . expected_time . fastlag . fixed_design_ahr . fixed_design_fh . fixed_design_lf . fixed_design_maxcombo . fixed_design_mb . fixed_design_milestone . fixed_design_rd . fixed_design_rmst . gsDesign2-package . gs_b . gs_create_arm . gs_design_ahr . gs_design_combo . gs_design_npe . gs_design_rd . gs_design_wlr . gs_info_ahr . gs_info_combo . gs_info_rd . gs_info_wlr . gs_power_ahr . gs_power_combo . gs_power_npe . gs_power_rd . gs_power_wlr . gs_spending_bound . gs_spending_combo . ppwe . pw_info . s2pwe . summary . to_integer . wlr_weight . 
Some associated R codes: RcppExports.R . ahr.R . as_gt.R . check_arg.R . define.R . expected_accural.R . expected_event.R . expected_time.R . fixed_design_ahr.R . fixed_design_fh.R . fixed_design_lf.R . fixed_design_maxcombo.R . fixed_design_mb.R . fixed_design_milestone.R . fixed_design_rd.R . fixed_design_rmst.R . globals.R . gridpts_h1_hupdate.R . gsDesign2-package.R . gs_b.R . gs_design_ahr.R . gs_design_combo.R . gs_design_npe.R . gs_design_rd.R . gs_design_wlr.R . gs_info_ahr.R . gs_info_combo.R . gs_info_rd.R . gs_info_wlr.R . gs_power_ahr.R . gs_power_combo.R . gs_power_npe.R . gs_power_rd.R . gs_power_wlr.R . gs_spending_bound.R . gs_spending_combo.R . pw_info.R . pwe.R . rmst.R . summary.R . to_integer.R . utility_combo.R . utility_tidy_tbl.R . utility_wlr.R . wlr_weight.R .  Full gsDesign2 package functions and examples
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