Stochastic Metafrontier Analysis R package smfa version 1.0.0 Implements stochastic metafrontier analysis for productivity and performance benchmarking across firms operating under different technologies. Contains routines for the deterministic metafrontier envelope of O'Donnell et al. (2008) <doi:10.1007/s00181-007-0119-4> via linear and quadratic programming, and the stochastic metafrontier of Huang et al. (2014) <doi:10.1007/s11123-014-0402-2>. Also supports latent class stochastic metafrontier analysis and sample selection correction stochastic metafrontier models. Depends on the 'sfaR' package by Dakpo et al. (2023) <https://CRAN.R-project.org/package=sfaR>. Software Depends: R (>= 3.5.0), sfaR Imports: stats Suggests: knitr, rmarkdown, pkgdown, lmtest Sulman Olieko Owili <oliekosulman@gmail.com> Comprehensive R Archive Network (CRAN) Sulman Olieko Owili [aut, cre] (ORCID: <https://orcid.org/0000-0001-7401-5326>) GPL (>= 3) 2026-04-28 application/tgz https://CRAN.R-project.org/package=smfa doi:10.32614/CRAN.package.smfa en-US