Sample Size and Power Calculations using the APPLE, SEPPLE, APPLE+ and SEPPLE+ Methods
Overview
Provides sample size and power calculations when the treatment time-lag effect is present and the lag duration is either homogeneous across the individual subject, or varies heterogeneously from individual to individual within a certain domain and following a specific pattern. The methods used are described in Xu, Z., Zhen, B., Park, Y., & Zhu, B. (2017) doi:10.1002/sim.7157.
Install
Health
NOTECRAN incoming feasibilityr-devel-linux-x86_64-debian-clang, r-devel-linux-x86_64-debian-gcc
Maintainer: ‘Bill Wheeler <wheelerb@imsweb.com>’
No Authors@R field in DESCRIPTION.
Please add one, modifying
Authors@R: c(person(given = "Zhenzhen",
family = "Xu",
role = "aut",
email = "Zhenzhen.Xu@fda.hhs.gov"),
person(given = "Boguang",
family = "Zhen",
role = "aut",
email = "Boguang.Zhen@fda.hhs.gov"),
person(given = "Yongsoek",
family = "Park",
role = "aut",
email = "yongpark@pitt.edu"),
person(given = "Bin",
family = "Zhu",
role = "aut",
email = "bin.zhu@nih.gov"),
person(given = "Bill",
family = "Wheeler",
role = "cre",
email = "wheelerb@imsweb.com"))
as necessary.- NOTE11 OK, 2 NOTENow
- NOTE12 OK, 2 NOTE2026-03-10
Documentation
- Help pages
- 14includes a package overview page
- Examples that run
- 100%13 run in a plain check
- Exported functions with examples
- 100%
- Documented parameters
- 100%
- Return-value docs
- 100%
- Help pages citing references
- 93%
Downloads
Dependencies
Installing DelayedEffect.Design adds no packages beyond those that come with R.
Code & Tests
Datasets
People & History
Maintainer since 1.1.2 (2022), previously Zhenzhen Xu (0.0.4)
Pick two releases to compare their code metrics.
- RR 4.6.0 released · 2026-04-24
- RR 4.5.0 released · 2025-04-11
- RR 4.4.0 released · 2024-04-24
- 1.1.3Latest
- RR 4.3.0 released · 2023-04-21
- 1.1.22022-12-01 · diff ↗ ·
added 7 exports
pow.APPLE.plus, pow.SEPPLE.plus, pow.sim.logrk.random.DE, N.APPLE.plus, HR.APPLE.plus, pow.SEPPLE.random.DE, GPW.logrank - RR 4.2.0 released · 2022-04-22
- RR 4.1.0 released · 2021-05-18
- RR 4.0.0 released · 2020-04-24
- RR 3.6.0 released · 2019-04-26
- RR 3.5.0 released · 2018-04-23
- 0.0.42017-09-01
- RR 3.4.0 released · 2017-04-21
Package metadata
- First published
- 2017-09-01
- Total releases
- 3 / 9 yrs
- License
- GPL-2 OSI
- Minimum R
- ≥ 3.5
- Bundled data
- 8.1 KB / 1 file
- Download size
- 21 KB
Cite
Cite this package
Run in R for the authors' preferred citation:
citation("DelayedEffect.Design")Cite the R Observatory
For a number measured here: a download total, a coverage figure, an archival date.
From data release v2026-10-26, which the citation names so these numbers can be found later. More on citing and the projects behind them.