Conventional and Fuzzy Data Envelopment Analysis R package deaR version 1.5.4 Set of functions for Data Envelopment Analysis, including classical, fuzzy, cross-efficiency, bootstrapping, and Malmquist models. See: Banker, R.; Charnes, A.; Cooper, W.W. (1984). <doi:10.1287/mnsc.30.9.1078>, Charnes, A.; Cooper, W.W.; Rhodes, E. (1978). <doi:10.1016/0377-2217(78)90138-8> and Charnes, A.; Cooper, W.W.; Rhodes, E. (1981). <doi:10.1287/mnsc.27.6.668>. Software Depends: R (>= 3.5) Imports: lpSolve, ggplot2, tidyr, plotly, igraph, writexl, dplyr, methods, gridExtra, grDevices, optiSolve Vicente Bolos <vicente.bolos@uv.es> Comprehensive R Archive Network (CRAN) Vicente Bolos [aut, cre], Vicente Coll-Serrano [aut], Rafael Benitez Suarez [aut] GPL 2026-02-24 application/tgz https://CRAN.R-project.org/package=deaR doi:10.32614/CRAN.package.deaR