Area-Proportional Euler and Venn Diagrams R package eulerr version 8.1.0 Generate area-proportional Euler diagrams using numerical optimization. A Euler diagram is a generalization of a Venn diagram, relaxing the criterion that all interactions need to be represented. Diagrams may be fit with circles, ellipses, squares, and rectangles via a wide range of inputs and can be visualized in numerous ways. Software Depends: R (>= 4.2) Imports: graphics, grDevices, grid, parallel, stats, utils Suggests: covr, knitr, lattice, pBrackets, RConics, rmarkdown, testthat, spelling Johan Larsson <johan@jolars.co> Comprehensive R Archive Network (CRAN) Johan Larsson [aut, cre, cph] (ORCID: <https://orcid.org/0000-0002-4029-5945>), A. Jonathan R. Godfrey [ctb], Peter Gustafsson [ctb], David H. Eberly [ctb] (geometric algorithms), Emanuel Huber [ctb] (root solver code), Florian Privé [ctb] MIT + file LICENSE (https://CRAN.R-project.org/package=eulerr/LICENSE) 2026-06-30 application/tgz https://CRAN.R-project.org/package=eulerr doi:10.32614/CRAN.package.eulerr en-US