QCA

3.25

Qualitative Comparative Analysis

8packages depend

54.8Kdownloads / year

–test coverage

12/13checks pass

Overview

About

Maintained by Adrian DusaFirst published 2006-02-0491 releasesCRAN page ↗GitHub ↗

An extensive set of functions to perform Qualitative Comparative Analysis: crisp sets ('csQCA'), temporal ('tQCA'), multi-value ('mvQCA') and fuzzy sets ('fsQCA'). 'QCA' is a methodology that bridges the qualitative and quantitative divide in social science research. It uses a Boolean minimization algorithm, resulting in a minimal causal configuration associated with a given phenomenon.

Install

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

install.packages("QCA", 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("dusadrian/QCA")

Development version from dusadrian/QCA. 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-qca

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-QCA

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-QCA

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

Health

CRAN checks

1NOTE12OK

Failing flavors

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

Slowest check: 4.4 min · r-oldrel-windows-x86_64

Code health

None

Tests · ratio 0.00

not tracked

Coverage

100%

Documentation · exports

Dependencies · direct

Check history

NOTE2026-08-01
12 OK · 1 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
OK2026-04-25
12 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
NOTE2026-04-01
13 OK · 1 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
WARNING2026-03-21
6 OK · 7 NOTE · 1 WARNING · 0 ERROR · 0 FAILURE
NOTE2026-03-10
11 OK · 3 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMENoVignettesNopkgdown siteNoNEWSNoCode of conductNoContributing guideNo

Examples that run: 82%
Documented parameters: 100%
Return-value docs: 78%
References docs: 64%

Downloads

54.8K

CRAN downloads in the past year

Rank #1,591 · ~150/day · ~4.6K/mo

Releases R versions

Daily download trend is not available in this view yet.

3.5K30 days

17K90 days

54.8K1 year

Compare downloads with other packages →

Also on540 r2u

Repository

GitHub ↗ dusadrian/qca

6Stars

1Forks

1Open issues

0Open PRs

0Releases

45Commits

1Contributors

45 commits · Last activity 2026-07-22 · 0% stars, 30d

Stars over time

2025-05-16 · 32026-07-07 · 6

Repository practices

Upstream repositoryBeta

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

Checks run against github.com/dusadrian/qca on 2026-07-31.

Continuous integration (1)

Travis CI

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

Dependencies

Declared dependencies

3 external dependencies (excludes base and recommended)

Depends (2)

R >= 3.6.0admisc

Imports (3)

methodsdeclared venn

LinkingTo (0)

none

Suggests (0)

none

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

8direct

0indirect

SetMethods QCAcluster TSQCA ThSQCA braQCA qcaERT admisc venn

Code & Tests

Datasets

People & History

People (3)

Maintainer (1)

Adrian Dusa

Author, Maintainer, Copyright holder

Authors (2)

Adrian Dusa

Author, Maintainer, Copyright holder

Alrik Thiem

Author · added in 1.0-0

Contributors (1)

Ciprian Paduraru

Contributor · added in 3.7

Adrian Dusa

Author, Maintainer, Copyright holder

Listed in earlier versions (7)

Dmitry Baranovskiy