OpenMx: Extended Structural Equation Modelling

Create structural equation models that can be manipulated programmatically. Models may be specified with matrices or paths (LISREL or RAM) Example models include confirmatory factor, multiple group, mixture distribution, categorical threshold, modern test theory, differential Fit functions include full information maximum likelihood, maximum likelihood, and weighted least squares. equations, state space, and many others. Support and advanced package binaries available at <>. The software is described in Neale, Hunter, Pritikin, Zahery, Brick, Kirkpatrick, Estabrook, Bates, Maes, & Boker (2016) <doi:10.1007/s11336-014-9435-8>.

Version: 2.17.4
Depends: R (≥ 3.5.0)
Imports: digest, MASS, Matrix, methods, Rcpp, parallel
LinkingTo: Rcpp, RcppEigen, StanHeaders (≥, BH (≥ 1.69.0-1), rpf (≥ 0.45)
Suggests: mvtnorm, numDeriv, roxygen2 (≥ 6.1), Rmpi, rpf (≥ 0.45), snowfall, lme4, covr, testthat
Published: 2020-06-07
Author: Steven M. Boker [aut], Michael C. Neale [aut], Hermine H. Maes [aut], Michael J. Wilde [ctb], Michael Spiegel [aut], Timothy R. Brick [aut], Ryne Estabrook [aut], Timothy C. Bates [aut], Paras Mehta [ctb], Timo von Oertzen [ctb], Ross J. Gore [aut], Michael D. Hunter [aut], Daniel C. Hackett [ctb], Julian Karch [ctb], Andreas M. Brandmaier [ctb], Joshua N. Pritikin [aut, cre], Mahsa Zahery [aut], Robert M. Kirkpatrick [aut], Yang Wang [ctb], Ben Goodrich [ctb], Charles Driver [ctb], Massachusetts Institute of Technology [cph], S. G. Johnson [cph], Association for Computing Machinery [cph], Dieter Kraft [cph], Stefan Wilhelm [cph], Sarah Medland [cph], Carl F. Falk [cph], Matt Keller [cph], Manjunath B G [cph], The Regents of the University of California [cph], Lester Ingber [cph], Wong Shao Voon [cph], Juan Palacios [cph], Jiang Yang [cph], Gael Guennebaud [cph], Jitse Niesen [cph]
Maintainer: Joshua N. Pritikin <jpritikin at>
License: Apache License (== 2.0)
NeedsCompilation: yes
SystemRequirements: GNU make
Language: en-US
Citation: OpenMx citation info
Materials: README NEWS
In views: MissingData, Psychometrics
CRAN checks: OpenMx results


Reference manual: OpenMx.pdf
Package source: OpenMx_2.17.4.tar.gz
Windows binaries: r-devel:, r-release:, r-oldrel:
macOS binaries: r-release: OpenMx_2.17.4.tgz, r-oldrel: OpenMx_2.17.4.tgz
Old sources: OpenMx archive

Reverse dependencies:

Reverse depends: EasyMx, gwsem, ifaTools, lvnet, metaSEM, semtree, umx
Reverse imports: MBESS, mxmmod, semPlot
Reverse suggests: EGAnet, simsem


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