cocron

1.0-1

Statistical Comparisons of Two or more Alpha Coefficients

0packages depend

4.7Kdownloads / year

–test coverage

11/13checks pass

Overview

About

Maintained by Birk DiedenhofenFirst published 2012-10-309 releasesCRAN page ↗

Statistical tests for the comparison between two or more alpha coefficients based on either dependent or independent groups of individuals. A web interface is available at http://comparingcronbachalphas.org. A plugin for the R GUI and IDE RKWard is included. Please install RKWard from https:// rkward.kde.org to use this feature. The respective R package 'rkward' cannot be installed directly from a repository, as it is a part of RKWard.

Install

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

install.packages("cocron", 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-cocron

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-cocron

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-cocron

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

Health

CRAN checks

2NOTE11OK

Failing flavors

NOTE r-devel-linux-x86_64-debian-clang
NOTE r-devel-linux-x86_64-debian-gcc

Slowest check: 59 s · r-oldrel-windows-x86_64

Code health

Yes

Tests · ratio 0.01

not tracked

Coverage

100%

Documentation · exports

Dependencies · direct

Check history

NOTE2026-03-10
9 OK · 5 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMENoVignettesNopkgdown siteNoNEWSNoCode of conductNoContributing guideNo

Examples that run: 100%
Documented parameters: 100%
Return-value docs: 100%
References docs: 71%

Downloads

4.7K

CRAN downloads in the past year

Rank #10,091 · ~13/day · ~395/mo

Releases R versions

Daily download trend is not available in this view yet.

30430 days

1K90 days

4.7K1 year

Compare downloads with other packages →

Also on130 r2u7 autocran78 c2d4u

Dependencies

Declared dependencies

1 external dependency (excludes base and recommended)

Depends (1)

methods

Imports (1)

stats

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 (1)

Maintainer (1)

Birk Diedenhofen

Author, Maintainer

Authors (1)

Birk Diedenhofen

Author, Maintainer

Package Timeline

9 releases. Pick two to compare their code metrics. R releases are shown for context.

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
R
R 4.1.0 released · 2021-05-18
R
R 4.0.0 released · 2020-04-24
R
R 3.6.0 released · 2019-04-26
R
R 3.5.0 released · 2018-04-23
R
R 3.4.0 released · 2017-04-21
R
R 3.3.0 released · 2016-05-03
1.0-1Latest
2016-03-12 · current release · diff ↗
R
R 3.2.0 released · 2015-04-16
R
R 3.1.0 released · 2014-04-10
1.0-0
2013-09-21 · diff ↗
3.0.2
2013-09-05 · diff ↗

Show 8 earlier events

3.0.1
2013-04-04 · diff ↗
0.01-5
2013-04-04 · diff ↗
R
R 3.0.0 released · 2013-04-03
0.01-4
2012-11-30 · diff ↗
2.15.3
2012-11-29 · diff ↗
0.01-3
2012-11-03 · diff ↗
0.01-1
2012-10-30
R
R 2.15.0 released · 2012-03-30

Package metadata

First published: 2012-10-30
Total releases: 9 / 14 yrs
License: GPL (>= 3) OSI
Bundled data: 5.6 KB / 1 file
Download size: 23 KB
Installed size: not tracked yet
With dependencies: not tracked yet

Appears in task views

Psychometric Models and Methods

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