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igoR: Access the Intergovernmental Organizations ('IGO') Database

Provides tools for searching, extracting and recoding the Intergovernmental Organizations ('IGO') Database (version 3), distributed by the Correlates of War Project <https://correlatesofwar.org/>. Includes 'IGO'-year and country-year membership data, state system data and functions for deriving dyad-year joint membership results. For a description of the data, see Pevehouse, J. C. et al. (2020) <doi:10.1177/0022343319881175>.

Version: 1.0.3
Depends: R (≥ 3.6.0)
Imports: stats
Suggests: countrycode (≥ 1.1.0), dplyr (≥ 1.0.2), ggplot2, knitr, quarto, testthat (≥ 3.0.0)
Published: 2026-06-24
DOI: 10.32614/CRAN.package.igoR
Author: Diego Hernangómez ORCID iD [aut, cre, cph], The Correlates of War Project [cph] (for the data)
Maintainer: Diego Hernangómez <diego.hernangomezherrero at gmail.com>
BugReports: https://github.com/dieghernan/igoR/issues
License: GPL (≥ 3)
Copyright: © 2000-2021 by the Correlates of War. See file COPYRIGHTS.
igoR copyright details
URL: https://dieghernan.github.io/igoR/, https://github.com/dieghernan/igoR
NeedsCompilation: no
Citation: igoR citation info
Materials: README, NEWS
CRAN checks: igoR results

Documentation:

Reference manual: igoR.html , igoR.pdf
Vignettes: Get started with igoR (source, R code)
Mapping IGOs (source)

Downloads:

Package source: igoR_1.0.3.tar.gz
Windows binaries: r-devel: igoR_1.0.2.zip, r-release: igoR_1.0.3.zip, r-oldrel: igoR_1.0.2.zip
macOS binaries: r-release (arm64): igoR_1.0.3.tgz, r-oldrel (arm64): igoR_1.0.3.tgz, r-release (x86_64): igoR_1.0.3.tgz, r-oldrel (x86_64): igoR_1.0.3.tgz
Old sources: igoR archive

Linking:

Please use the canonical form https://CRAN.R-project.org/package=igoR to link to this page.

These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.
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