R Observatory: Metrics for impower133 version 1.0.0

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

impower133

1.0.0

Reproduce IMpower133 Clinical Trial Results

0packages depend

519downloads / year

–test coverage

13/13checks pass

Overview

About

Maintained by Lu HuangFirst published 2026-06-111 releasesCRAN page ↗GitHub ↗

Provides functions to simulate baseline characteristics, reconstruct overall survival data from published Kaplan-Meier curves, and generate publication-ready tables and forest plots reproducing the IMpower133 clinical trial results (Horn et al., 2018, doi:10.1056/NEJMoa1809064). The IPD reconstruction method is based on Liu et al.(2021, doi:10.1186/s12874-021-01308-8).

Install

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

install.packages("impower133", repos = "https://cloud.r-project.org/")

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

if (!requireNamespace("pak", quietly = TRUE))
  install.packages("pak", repos = "https://cloud.r-project.org/")
pak::pak("fanfande131/impower133")

Development version from fanfande131/impower133. Installs pak first if it is not already available.

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-impower133

Fast Ubuntu binaries via r2u (no compilation). The cranapt setup runs once and is skipped when it is already enabled.

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-impower133

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-impower133

RPMs auto-built from CRAN on openSUSE OBS (Tumbleweed).

Health

CRAN checks

13OK

Slowest check: 1.2 min · r-oldrel-windows-x86_64

Code health

None

Tests · ratio 0.00

not tracked

Coverage

90%

Documentation · exports

10

Dependencies · direct

Check history

OK2026-08-05
13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
NOTE2026-08-01
12 OK · 1 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
OK2026-06-12
7 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMEYes · 254 wordsVignettesNopkgdown siteNoNEWSNoCode of conductNoContributing guideNo

Examples that run: 50%
Documented parameters: 88%
Return-value docs: 100%
References docs: 0%

Downloads

519

CRAN downloads in the past year

Rank #21,369 · ~1/day · ~43/mo

Releases R versions

Daily download trend is not available in this view yet.

15330 days

51990 days

5191 year

Compare downloads with other packages →

Also on15 r2u2 autocran

Repository

GitHub ↗ fanfande131/impower133

0Stars

0Forks

0Open issues

0Open PRs

0Releases

Last activity 2026-06-22

Repository practices

Upstream repositoryBeta

3 development-tooling and community-health practices detected across 2 families in the upstream repository

Checks run against github.com/fanfande131/impower133 on 2026-08-16.

CRAN release process (2)

cran-comments.mdCRAN-SUBMISSION

Lint, format, editor (1)

RStudio project

How this is detected·Detection ruleset v1 (2026-07-18)

Dependencies

Declared dependencies

7 external dependencies (excludes base and recommended)

Depends (0)

none

Imports (10)

dplyrsurvivalsurvminer gt forestplot IPDfromKM ggplot2statsutilsgrid

LinkingTo (0)

none

Suggests (1)

testthat

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

Code & Tests

People & History

People (4)

Maintainer (1)

Lu Huang

Author, Maintainer

Authors (4)

Author, Maintainer

Author

Author

Author

Package Timeline

1 release. R releases are shown for context.

1.0.0Latest
2026-06-11 · current release
R
R 4.6.0 released · 2026-04-24

Package metadata

First published: 2026-06-11
Total releases: 1 / 1 yrs
License: MIT + file LICENSE OSI
Download size: 1.4 MB
Installed size: not tracked yet
With dependencies: not tracked yet

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("impower133")

Format

Huang, L., Chen, Q., Jiang, Q., & Nie, W. (2026). impower133: Reproduce IMpower133 Clinical Trial Results (Version 1.0.0) [Computer software]. https://doi.org/10.32614/CRAN.package.impower133

This is what citation() produces when a package has no citation file of its own. If it prints something else, use that.

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 impower133 version 1.0.0 [Data set]. HJJB, LLC. Data release v2026-08-22. https://doi.org/10.5281/zenodo.21843040

From data release v2026-08-22, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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