Fit Two-Component Normal and Lognormal Mixture Models R package DEmixR version 0.2.0 Fits, bootstraps, and evaluates two-component normal and lognormal mixture models. Parameters are estimated by combining differential-evolution global optimization, as implemented in the 'DEoptim' package (Mullen, Ardia, Gil, Windover and Cline, 2011) <doi:10.18637/jss.v040.i06>, with a local 'L-BFGS-B' refinement step via optim(). Also provides preliminary diagnostic plots, automatic normal-versus-lognormal model selection by information criteria, and parametric or nonparametric bootstrap confidence intervals for the fitted parameters. Software Imports: DEoptim (>= 2.0.0), pbapply (>= 1.0.0) Suggests: knitr, rmarkdown, testthat (>= 3.1.7) Farrokh Habibzadeh <farrokh.habibzadeh@gmail.com> Comprehensive R Archive Network (CRAN) Farrokh Habibzadeh [aut, cre] (ORCID: <https://orcid.org/0000-0001-5360-2900>) MIT + file LICENSE (https://CRAN.R-project.org/package=DEmixR/LICENSE) 2026-08-02 application/tgz https://CRAN.R-project.org/package=DEmixR doi:10.32614/CRAN.package.DEmixR