Photosynthetic Gas Exchange Analysis R package PhotoGEA version 1.4.0 Read, process, fit, and analyze photosynthetic gas exchange measurements. Documentation is provided by several vignettes; also see Lochocki, Salesse-Smith, & McGrath (2025) <doi:10.1111/pce.15501>. Software Depends: R (>= 3.6.0) Imports: openxlsx, lattice, dfoptim, DEoptim Suggests: knitr, rmarkdown, plantecophys, testthat (>= 3.0.0) Edward B. Lochocki <eloch@illinois.edu> Comprehensive R Archive Network (CRAN) Edward B. Lochocki [cre, aut] (ORCID: <https://orcid.org/0000-0002-4912-9783>), Coralie E. Salesse-Smith [aut] (ORCID: <https://orcid.org/0000-0002-2856-4217>), Justin M. McGrath [aut] (ORCID: <https://orcid.org/0000-0002-7025-3906>), PhotoGEA authors [cph] MIT + file LICENSE (https://CRAN.R-project.org/package=PhotoGEA/LICENSE) 2025-08-25 application/tgz https://CRAN.R-project.org/package=PhotoGEA doi:10.32614/CRAN.package.PhotoGEA