R Observatory: Metrics for crt2power version 1.2.2

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

crt2power

1.2.2Package record

Designing Cluster-Randomized Trials with Two Continuous Co-Primary Outcomes

0packages depend

3.1Kdownloads / year

60.1%test coverage

13/13flavors OK

Overview

About

Maintained by Melody OwenCRAN page ↗GitHub ↗

Provides methods for powering cluster-randomized trials with two continuous co-primary outcomes using five key design techniques. Includes functions for calculating required sample size and statistical power. For more details on methodology, see Owen et al. (2025) doi:10.1002/sim.70015, Yang et al. (2022) doi:10.1111/biom.13692, Pocock et al. (1987) doi:10.2307/2531989, Vickerstaff et al. (2019) doi:10.1186/s12874-019-0754-4, and Li et al. (2020) doi:10.1111/biom.13212.

Install

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

install.packages("crt2power", 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("melodyaowen/crt2power")

Development version from melodyaowen/crt2power. 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-crt2power

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-crt2power

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-crt2power

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: 10.3 min · r-oldrel-windows-x86_64

Status changes

OK13 OK2026-08-05
NOTE12 OK, 1 NOTE2026-08-01
OK13 OK2026-06-09
ERROR12 OK, 1 ERROR2026-06-08
OK13 OK2026-05-02

Show 2 earlier changesHide 2 earlier changes

ERROR11 OK, 1 ERROR2026-04-25
OK14 OK2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 1.2.2

READMEYes · 849 wordsVignettesNoNEWSNoCitation fileNoWebsitenot declared in DESCRIPTION

Help pages: 17
Examples that run: 100%17 run in a plain check
Exported functions with examples: 100%
Documented parameters: 100%
Return-value docs: 100%
Help pages citing references: 0%

How these are measured

Downloads

3.1K

CRAN downloads in the past year

Rank #16,788 · ~9/day · ~262/mo

Releases R versions

Daily download trend is not available in this view yet.

36930 days

74090 days

3.1K1 year

Compare downloads with other packages →

Also on100 r2u13 autocran

How downloads are counted

Repository

melodyaowen/crt2power ↗Account: melodyaowen

0Stars

0Forks

0Open issues

0Open PRs

0Releases

Last activity 2025-12-19

Responsiveness

How these are sampled

PRs merged (all time): 0%
Median days to close, 50 most recently updated closed issues: not measured
Median days to close, 50 most recently updated closed PRs: not measured

How these are measured

PracticesBeta

1 development-tooling and community-health practice detected across 1 family in the upstream repository

Checks run against github.com/melodyaowen/crt2power on 2026-10-11.

Lint, format, editor (1)

RStudio project

How this is detected·Detection ruleset v3 (2026-09-26)

Dependencies

Declared dependencies

11 external dependencies (excludes base and recommended)

Installing crt2power adds 160 packages (73 with compiled code, 95 MB of source tarballs). Heaviest: stringi 11 MB, ggplot2 6.0 MB, data.table 5.7 MB.

Depends (1)

R >= 4.3

Imports (11)

devtools knitr rootSolve tidyverse tableone foreach mvtnorm tibble dplyr tidyrstats

LinkingTo (0)

none

Suggests (1)

testthat

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

How these are counted

Code & Tests

People & History

People (1)

Melody Owen

Author, Maintainer since 1.0.0 (2024)

Releases (5)

Pick two releases to compare their code metrics.

R
R 4.6.0 released · 2026-04-24
1.2.2Latest
record
2025-11-12 · current release · diff ↗
1.2.1
record
2025-05-07 · diff ↗
R
R 4.5.0 released · 2025-04-11
1.2.0
record
2025-03-13 · diff ↗
1.1.0
record
2024-09-23 · diff ↗
1.0.0
record
2024-06-20
R
R 4.4.0 released · 2024-04-24

Package metadata

First published: 2024-06-20
Total releases: 5 / 2 yrs
License: GPL-3 OSI
Minimum R: ≥ 4.3
Download size: 24 KB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("crt2power")

Format

Owen, M. (2025). crt2power: Designing Cluster-Randomized Trials with Two Continuous Co-Primary Outcomes (Version 1.2.2) [Computer software]. https://doi.org/10.32614/CRAN.package.crt2power

This package has no citation file, so citation() returns this entry built from DESCRIPTION.

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 crt2power version 1.2.2 [Data set]. HJJB, LLC. Data release v2026-10-18. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-18, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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