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# CITATION.cff file created with {cffr} R package
# See also: https://docs.ropensci.org/cffr/
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cff-version: 1.2.0
message: 'To cite package "gsDesign2" in publications use:'
type: software
license: GPL-3.0-only
title: 'gsDesign2: Group Sequential Design with Non-Constant Effect'
version: 1.1.9
doi: 10.32614/CRAN.package.gsDesign2
abstract: '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) <https://doi.org/10.1111/biom.13196>, and MaxCombo tests. Substantial
  flexibility on top of what is in the ''gsDesign'' package is intended for selecting
  boundaries.'
authors:
- family-names: Anderson
  given-names: Keaven
  email: keaven_anderson@merck.com
- family-names: Zhao
  given-names: Yujie
  email: yujie.zhao@merck.com
- family-names: Zhang
  given-names: Yilong
  email: elong0527@gmail.com
- family-names: Blischak
  given-names: John
  email: jdblischak@gmail.com
- family-names: Xie
  given-names: Yihui
  email: yihui.xie@merck.com
- family-names: Xiao
  given-names: Nan
  email: nan.xiao1@merck.com
- family-names: Yang
  given-names: Jianxiao
  email: yangjx@ucla.edu
repository: https://cran.r-universe.dev
repository-code: https://github.com/Merck/gsDesign2
commit: 183cd3792f8b424d790552d7dea2b8d405c850d6
url: https://merck.github.io/gsDesign2/
date-released: '2026-06-30'
contact:
- family-names: Zhao
  given-names: Yujie
  email: yujie.zhao@merck.com