Structural Equation Modeling and Twin Modeling in R R package umx version 4.65.0 Quickly create, run, and report structural equation models, and twin models. See '?umx' for help, and umx_open_CRAN_page("umx") for NEWS. Timothy C. Bates, Michael C. Neale, Hermine H. Maes, (2019). umx: A library for Structural Equation and Twin Modelling in R. Twin Research and Human Genetics, 22, 27-41. <doi:10.1017/thg.2019.2>. Software Depends: R (>= 4.1.0), OpenMx (>= 2.20.0), Imports: cowplot, DiagrammeR, gert, ggplot2, kableExtra, knitr, lavaan, MASS, Matrix, methods, MuMIn, mvtnorm, nlme, openxlsx, paran, polycor, quantmod, R2HTML, RCurl, scales, utils, xtable, zoo Suggests: bestNormalize, cocor, devtools, GPArotation, parallel, psychTools, psych, pwr, rmarkdown, rhub, spelling, testthat Enhances: DiagrammeRsvg, rsvg Timothy C. Bates <timothy.c.bates@gmail.com> Comprehensive R Archive Network (CRAN) Timothy C. Bates [aut, cre] (ORCID: <https://orcid.org/0000-0002-1153-9007>), Luis De Araujo [ctb], Nathan Gillespie [wit], Hermine Maes [ctb], Michael C. Neale [ctb], Joshua N. Pritikin [ctb], Brenton Wiernik [ctb], Michael Zakharin [wit] GPL-3 2026-05-18 application/tgz https://CRAN.R-project.org/package=umx doi:10.32614/CRAN.package.umx en-US