R Observatory: Metrics for PwrGSD version 2.3.8

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

PwrGSD

2.3.8Package record

Power in a Group Sequential Design

1packages depend

5.9Kdownloads / year

–test coverage

13/13flavors OK

Overview

About

Maintained by Grant IzmirlianCRAN page ↗

Tools for the evaluation of interim analysis plans for sequentially monitored trials on a survival endpoint; tools to construct efficacy and futility boundaries, for deriving power of a sequential design at a specified alternative, template for evaluating the performance of candidate plans at a set of time varying alternatives. See Izmirlian, G. (2014) doi:10.4310/SII.2014.v7.n1.a4.

Install

R (CRAN)Ubuntu (r2u)Fedora (COPR)openSUSE (OBS)

install.packages("PwrGSD", repos = "https://cloud.r-project.org/")

Installs the current CRAN release. Prebuilt binaries on Windows and macOS.

Release

# enable cranapt (r2u) if it is not already set up, then install
grep -rqs r2u.stat.illinois.edu /etc/apt/sources.list /etc/apt/sources.list.d/ \
  || curl -fsSL https://raw.githubusercontent.com/eddelbuettel/r2u/master/inst/scripts/add_cranapt_noble.sh | sudo bash
sudo apt install -y r-cran-pwrgsd

Fast Ubuntu binaries via r2u (no compilation). The cranapt setup runs once and is skipped when it is already enabled. We list this channel from recorded r2u download activity rather than from a live index of the repository, so treat it as last known rather than guaranteed.

bspm (used by r2u) also needs make: sudo apt install make

# enable the iucar/cran COPR if it is not already present, then install
ls /etc/yum.repos.d/*iucar*cran*.repo >/dev/null 2>&1 \
  || sudo dnf copr enable -y iucar/cran
sudo dnf install -y R-CRAN-PwrGSD

RPMs from the iucar/cran COPR, rebuilt from CRAN.

For install.packages() integration in R, also: sudo dnf install R-CoprManager

# add the autoCRAN OBS repo (Tumbleweed) if it is missing, then install
zypper -q lr | grep -qi autoCRAN \
  || sudo zypper addrepo https://download.opensuse.org/repositories/devel:/languages:/R:/autoCRAN/openSUSE_Tumbleweed/devel:languages:R:autoCRAN.repo
sudo zypper install -y R-PwrGSD

RPMs auto-built from CRAN on openSUSE OBS (Tumbleweed). We list this channel from recorded autoCRAN download activity rather than from a live index of the repository, so treat it as last known rather than guaranteed.

Health

CRAN checks

13OK

CRAN check page ↗

Slowest check: 5.2 min · r-devel-windows-x86_64

Status changes

OK13 OK2026-08-05
NOTE12 OK, 1 NOTE2026-08-01
OK14 OK2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 2.3.8

READMENoVignettesYes · 3 · dynamicNEWSNoCitation fileYes · cites a publicationWebsitenot declared in DESCRIPTION

Help pages: 32
Examples that run: 58%15 run in a plain check · 1 never run · 10 hold no code
Exported functions with examples: 83%
Documented parameters: 99%
Return-value docs: 100%
Help pages citing references: 44%

Vignettes (3)

How these are measured

Downloads

5.9K

CRAN downloads in the past year

Rank #5,736 · ~16/day · ~488/mo

Releases R versions

Daily download trend is not available in this view yet.

55130 days

1.5K90 days

5.9K1 year

Compare downloads with other packages →

Also on462 r2u2 autocran162 c2d4u

How downloads are counted

Dependencies

Declared dependencies

0 external dependencies (excludes base and recommended)

Installing PwrGSD adds no packages beyond those that come with R.

Depends (1)

survival

Imports (0)

none

LinkingTo (0)

none

Suggests (0)

none

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

1direct

1indirect

Imports 1

Depends, Imports or LinkingTo, most downloaded first

randomizeR

How these are counted

Code & Tests

Datasets

People & History

People (1)

Grant Izmirlian

Author, Maintainer since 1.0 (2008)

Releases (17)

Pick two releases to compare their code metrics.

R
R 4.6.0 released · 2026-04-24
R
R 4.5.0 released · 2025-04-11
2.3.8Latest
record
2024-10-11 · current release · diff ↗
2.3.7
record
2024-07-26 · diff ↗
R
R 4.4.0 released · 2024-04-24
R
R 4.3.0 released · 2023-04-21
R
R 4.2.0 released · 2022-04-22
2.3.6
record
2021-12-11 · diff ↗ ·
removed 1 export
%
2.3.5
record
2021-12-09 · diff ↗
R
R 4.1.0 released · 2021-05-18
unarchivedReturned to CRAN
2021-01-27
2.3.3
record
2021-01-27 · diff ↗ ·
added 1 export
detail
R
R 4.0.0 released · 2020-04-24
archivedRemoved from CRAN
2020-02-24
check problems were not corrected in time Simple fix needed to issues reported by LTO
unarchivedReturned to CRAN
2020-02-06
2.3.2
record
2020-02-06 · diff ↗

Show 29 earlier eventsHide 29 earlier events

archivedRemoved from CRAN
2020-01-11
check problems were not corrected in time '-fno-common' (gcc 10 default), LTO and 'ignoring return value'
R
R 3.6.0 released · 2019-04-26
2.3.1
record
2019-04-15 · diff ↗
R
R 3.5.0 released · 2018-04-23
2.3
record
2018-03-26 · diff ↗
2.2
record
2018-02-09 · diff ↗
R
R 3.4.0 released · 2017-04-21
R
R 3.3.0 released · 2016-05-03
R
R 3.2.0 released · 2015-04-16
R
R 3.1.0 released · 2014-04-10
2.000
record
2014-03-21 · diff ↗
1.172
record
2014-03-14 · diff ↗ ·
removed 1 export
Dnsty

added 2 exports
EX1gXK, gsd.dens
R
R 3.0.0 released · 2013-04-03
1.171
record
2012-10-13 · diff ↗ ·
added 2 exports
Dnsty, SCtoBdry
1.16.1
record
2012-10-12 · diff ↗
R
R 2.15.0 released · 2012-03-30
R
R 2.14.0 released · 2011-10-31
R
R 2.13.0 released · 2011-04-13
R
R 2.12.0 released · 2010-10-15
R
R 2.11.0 released · 2010-04-22
1.16
record
2010-03-13 · diff ↗ ·
added 6 exports
Haybittle, LanDemets, ObrienFleming, Pocock, Pow, SC
R
R 2.10.0 released · 2009-10-26
R
R 2.9.0 released · 2009-04-17
R
R 2.8.0 released · 2008-10-20
1.15
record
2008-07-11 · diff ↗
1.1
record
2008-05-14 · diff ↗
R
R 2.7.0 released · 2008-04-22
1.0
record
2008-01-07
R
R 2.6.0 released · 2007-10-03

Package metadata

First published: 2008-01-07
Total releases: 17 / 18 yrs
License: GPL (>= 2) OSI
Bundled data: 3.4 KB / 1 file
Download size: 672 KB

Appears in task views

Clinical Trial Design, Monitoring, Analysis and Reporting Design of Experiments (DoE) & Analysis of Experimental Data

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("PwrGSD")

The package provides a citation file that builds its entry when R runs it. Run citation() to see it.

Cite the R Observatory

For a number measured here: a download total, a coverage figure, an archival date.

Format

APA

Balamuta, J. J. (2026). R Observatory: Metrics for PwrGSD version 2.3.8 [Data set]. HJJB, LLC. Data release v2026-10-24. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-24, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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