R Observatory: Metrics for experiment version 1.2.1

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

experiment

1.2.1Package record

R Package for Designing and Analyzing Randomized Experiments

0packages depend

4.6Kdownloads / year

–test coverage

13/13flavors OK

Overview

About

Maintained by Kosuke ImaiCRAN page ↗GitHub ↗Issues ↗

Provides various statistical methods for designing and analyzing randomized experiments. One functionality of the package is the implementation of randomized-block and matched-pair designs based on possibly multivariate pre-treatment covariates. The package also provides the tools to analyze various randomized experiments including cluster randomized experiments, two-stage randomized experiments, randomized experiments with noncompliance, and randomized experiments with missing data.

Install

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

install.packages("experiment", 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("kosukeimai/experiment")

Development version from kosukeimai/experiment. 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-experiment

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-experiment

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-experiment

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: 2.6 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 1.2.1

README· In the repository, left out of the releaseVignettesNoNEWSNoCitation fileNoWebsitenot declared in DESCRIPTION

Help pages: 15
Examples that run: 100%4 run in a plain check
Exported functions with examples: 23%
Documented parameters: 100%
Return-value docs: 100%
Help pages citing references: 87%

How these are measured

Downloads

4.6K

CRAN downloads in the past year

Rank #5,983 · ~12/day · ~380/mo

Releases R versions

Daily download trend is not available in this view yet.

48530 days

1.4K90 days

4.6K1 year

Compare downloads with other packages →

Also on379 r2u8 autocran135 c2d4u

How downloads are counted

Repository

kosukeimai/experiment ↗Account: kosukeimai

14Stars

8Forks

0Open issues

1Open PRs

3Releases

391Commits

7Commit identities

391 commits · Last activity 2022-04-08

Responsiveness

How these are sampled

PRs merged (all time): 91%
Median days to close, 50 most recently updated closed issues: not measured
Median days to close, 50 most recently updated closed PRs: 1

Stars over time

2025-02-19 · 142026-07-07 · 14

How these are measured

PracticesBeta

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

Checks run against github.com/kosukeimai/experiment on 2026-10-18.

Continuous integration (1)

Travis CI (config file)

Lint, format, editor (1)

RStudio project

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

Dependencies

Declared dependencies

0 external dependencies (excludes base and recommended)

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

Depends (3)

R >= 2.4.0bootMASS

Imports (0)

none

LinkingTo (0)

none

Suggests (0)

none

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

How these are counted

Code & Tests

Datasets

People & History

People (2)

Kosuke Imai

Author, Maintainer since 1.0-0 (2007)

Zhichao Jiang

Author · added in 1.1-2

Listed in earlier versions (1)

Michael Li

no longer listed · 1.2.0

Releases (8)

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
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
1.2.1Latest
record
2022-04-12 · current release · diff ↗
R
R 4.1.0 released · 2021-05-18
R
R 4.0.0 released · 2020-04-24
1.2.0
record
2019-08-05 · diff ↗ ·
added 3 exports
AUPEC, PAPD, PAPE
R
R 3.6.0 released · 2019-04-26
1.1-4
record
2018-04-30 · diff ↗ ·
added 2 exports
CADErand, CADEreg
R
R 3.5.0 released · 2018-04-23
1.1-3
record
2018-04-19 · diff ↗
1.1-2
record
2018-01-18 · diff ↗ ·
removed 1 export
NoncompLI

added 3 exports
ATOPnoassumption, ATOPobs, ATOPsens
R
R 3.4.0 released · 2017-04-21
R
R 3.3.0 released · 2016-05-03

Show 17 earlier eventsHide 17 earlier events

R
R 3.2.0 released · 2015-04-16
R
R 3.1.0 released · 2014-04-10
R
R 3.0.0 released · 2013-04-03
1.1-1
record
2013-03-29 · 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
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
R
R 2.7.0 released · 2008-04-22
R
R 2.6.0 released · 2007-10-03
1.1-0
record
2007-07-24 · diff ↗ ·
added 2 exports
ATEcluster, CACEcluster
1.0-0
record
2007-06-22
R
R 2.5.0 released · 2007-04-24

Package metadata

First published: 2007-06-22
Total releases: 8 / 19 yrs
License: GPL (>= 2) OSI
Minimum R: ≥ 2.4.0
Bundled data: 22 KB / 1 file
Download size: 112 KB

Appears in task views

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

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("experiment")

Format

Imai, K., & Jiang, Z. (2022). experiment: R Package for Designing and Analyzing Randomized Experiments (Version 1.2.1) [Computer software]. https://doi.org/10.32614/CRAN.package.experiment

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 experiment version 1.2.1 [Data set]. HJJB, LLC. Data release v2026-10-21. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-21, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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