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OpenMx

Star Watch Copy Code

Extended Structural Equation Modelling

View on CRAN: Click here

Download and install OpenMx package within the R console
Install from CRAN:

 install.packages("OpenMx")

Install from Github:

 library("remotes")

                        install_github("cran/OpenMx")

Install by package version:

 library("remotes")

                        install_version("OpenMx", "2.22.10")

Attach the package and use:

 library("OpenMx")

Maintained by
Robert M. Kirkpatrick
[Scholar Profile | Author Map]

All associated links for this package

First Published: 2015-05-19

Latest Update: 2025-05-23

Description:

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) .

How to cite:

Robert M. Kirkpatrick (2015). OpenMx: Extended Structural Equation Modelling. R package version 2.22.10, https://cran.r-project.org/web/packages/OpenMx. Accessed 25 Aug. 2026.

Previous versions and publish date:

2.2.2 (2015-05-19 08:53), 2.2.4 (2015-05-28 12:02), 2.2.6 (2015-07-17 15:46), 2.3.1 (2015-10-07 09:13), 2.5.1 (2016-02-25 18:34), 2.5.2 (2016-02-29 11:04), 2.6.7 (2016-06-23 00:36), 2.6.8 (2016-07-16 23:07), 2.6.9 (2016-07-28 19:46), 2.7.2 (2017-01-10 19:05), 2.7.3 (2017-01-14 12:12), 2.7.4 (2017-01-17 08:36), 2.7.9-1 (2017-04-13 14:48), 2.7.9 (2017-03-22 17:01), 2.7.10 (2017-04-14 18:38), 2.7.11 (2017-05-06 01:06), 2.7.12 (2017-06-17 02:06), 2.7.13 (2017-07-29 07:46), 2.7.15 (2017-08-08 06:32), 2.7.16 (2017-08-13 07:30), 2.7.17 (2017-09-08 16:58), 2.7.18 (2017-10-15 16:51), 2.8.3 (2017-11-06 17:09), 2.9.6 (2018-03-18 15:05), 2.9.9 (2018-05-11 22:29), 2.10.0 (2018-08-04 00:20), 2.11.3 (2018-09-18 19:00), 2.11.4 (2018-09-25 18:40), 2.11.5 (2018-10-05 17:30), 2.12.1 (2019-01-18 16:00), 2.12.2 (2019-02-08 17:14), 2.13.0 (2019-05-24 10:20), 2.13.1 (2019-05-26 00:41), 2.13.2 (2019-05-27 01:10), 2.14.11 (2019-09-22 19:30), 2.15.3 (2019-11-20 00:10), 2.15.4 (2019-11-21 06:30), 2.15.5 (2019-12-09 15:40), 2.16.0 (2020-02-04 01:30), 2.17.2 (2020-02-15 22:20), 2.17.3 (2020-03-02 14:20), 2.17.4 (2020-06-07 07:40), 2.18.1 (2020-08-28 09:50), 2.19.1 (2021-03-08 18:20), 2.19.5 (2021-04-24 15:10), 2.19.6 (2021-06-28 16:00), 2.19.8 (2021-09-06 08:40), 2.20.0 (2022-01-16 01:02), 2.20.3 (2022-02-01 17:40), 2.20.6 (2022-03-09 11:50), 2.20.7 (2022-10-19 12:38), 2.21.1 (2023-01-20 00:50), 2.21.8 (2023-04-05 22:43), 2.21.10 (2023-11-08 01:00), 2.21.11 (2023-11-28 06:20), 2.21.12 (2024-08-17 09:40), 2.21.13 (2024-10-19 10:40), 2.22.6 (2025-05-19 21:10), 2.22.7 (2025-05-23 22:22), 2.22.9 (2025-08-20 07:02), 2.22.10 (2025-11-07 17:00), (2026-07-09 08:15)

Other packages that cited OpenMx R package

View OpenMx citation profile

Other R packages that OpenMx depends, imports, suggests or enhances

View OpenMx dependency map

Complete documentation for OpenMx

View documentation PDF

Functions, R codes and Examples using the OpenMx R package

Some associated functions: BaseCompute-class . Bollen_data . DiscreteBase-class . HS.ability.data . LongitudinalOverdispersedCounts . MxAlgebra-class . MxAlgebraFormula-class . MxBaseExpectation-class . MxBaseFitFunction-class . MxBaseNamed-class . MxBaseObjectiveMetaData-class . MxBounds-class . MxCI-class . MxCharOrList-class . MxCharOrLogical-class . MxCharOrNumber-class . MxCompare-class . MxCompute-class . MxConstraint-class . MxData-class . MxDataStatic-class . MxDirectedGraph-class . MxExpectationGREML-class . MxExpectationXclass . MxFitFunction-class . MxFitFunctionGREML-class . MxFlatModel-class . MxInterval-class . MxLISRELModel-class . MxListOrNull-class . MxMMI . MxMatrix-class . MxModel-class . MxOptionalChar-class . MxOptionalCharOrNumber-class . MxOptionalDataFrame-class . MxOptionalDataFrameOrMatrix-class . MxOptionalInteger-class . MxOptionalLogical-class . MxOptionalMatrix-class . MxOptionalNumeric-class . MxPenalty-class . MxRAMGraph-class . MxRAMModel-class . MxVersionType-class . Named-entity . OpenMx . Oscillator_data . as.statusCode . cvectorize . demoOneFactor_data . demoTwoFactor_data . diag2vec . dzfData . dzmData . dzoData . eigenvec . example1_data . example2_data . expm . factorExample1_data . factorScaleExample1_data . factorScaleExample2_data . genericFitDependencies-MxBaseFitFunction-method . imxAddDependency . imxAutoOptionValue . imxCheckMatrices . imxCheckVariables . imxConDecMatrixSlots . imxConstraintRelations . imxConvertIdentifier . imxConvertLabel . imxConvertSubstitution . imxCreateMatrix . imxDataTypes . imxDefaultGetSlotDisplayNames . imxDeparse . imxDependentModels . imxDetermineDefaultOptimizer . imxDmvnorm . imxEvalByName . imxExtractMethod . imxExtractNames . imxExtractReferences . imxExtractSlot . imxFlattenModel . imxFreezeModel . imxGenSwift . imxGenerateLabels . imxGenerateNamespace . imxGenericModelBuilder . imxGentleResize . imxGetNumThreads . imxGetSlotDisplayNames . imxHasConstraint . imxHasDefinitionVariable . imxHasNPSOL . imxHasOpenMP . imxHasThresholds . imxHasWLS . imxIdentifier . imxIndependentModels . imxInitModel . imxIsDefinitionVariable . imxIsMultilevel . imxIsPath . imxIsStateSpace . imxLocateFunction . imxLocateIndex . imxLocateLabel . imxLog . imxLookupSymbolTable . imxModelBuilder . imxModelTypes . imxMpiWrap . imxOriginalMx . imxPPML.Test.Battery . imxPPML.Test.Test . imxPPML . imxPenaltyTypes . imxPreprocessModel . imxReplaceMethod . imxReplaceModels . imxReplaceSlot . imxReportProgress . imxReservedNames . imxReverseIdentifier . imxRobustSE . imxRowGradients . imxSameType . imxSeparatorChar . imxSfClient . imxSimpleRAMPredicate . imxSparseInvert . imxSquareMatrix . imxSymmetricMatrix . imxTypeName . imxUntitledName . imxUntitledNumber . imxUntitledNumberReset . imxUpdateModelValues . imxVariableTypes . imxVerifyMatrix . imxVerifyModel . imxVerifyName . imxVerifyReference . imxWlsChiSquare . imxWlsStandardErrors . jointdata_data . latentMultipleRegExample1_data . latentMultipleRegExample2_data . lazarsfeld_data . logm . multiData1_data . mxAlgebra . mxAlgebraFromString . mxAlgebraObjective . mxAutoStart . mxAvailableOptimizers . mxBootstrap . mxBootstrapEval . mxBootstrapStdizeRAMpaths . mxBounds . mxCI . mxCheckIdentification . mxCompare . mxComputeBootstrap . mxComputeCheckpoint . mxComputeConfidenceInterval . mxComputeDefault . mxComputeEM . mxComputeGenerateData . mxComputeGradientDescent . mxComputeHessianQuality . mxComputeIterate . mxComputeJacobian . mxComputeLoadContext . mxComputeLoadData . mxComputeLoadMatrix . mxComputeLoop . mxComputeNelderMead . mxComputeNewtonRaphson . mxComputeNothing . mxComputeNumericDeriv . mxComputeOnce . mxComputePenaltySearch . mxComputeReportDeriv . mxComputeReportExpectation . mxComputeSequence . mxComputeSetOriginalStarts . mxComputeSimAnnealing . mxComputeStandardError . mxComputeTryCatch . mxComputeTryHard . mxConstraint . mxData . mxDataDynamic . mxDataWLS . mxDescribeDataWLS . mxEval . mxEvaluateOnGrid . mxExpectationBA81 . mxExpectationGREML . mxExpectationHiddenMarkov . mxExpectationLISREL . mxExpectationMixture . mxExpectationNormal . mxExpectationRAM . mxExpectationStateSpace . mxExpectationStateSpaceContinuousTime . mxFIMLObjective . mxFactor . mxFactorScores . mxFitFunctionAlgebra . mxFitFunctionGREML . mxFitFunctionML . mxFitFunctionMultigroup . mxFitFunctionR . mxFitFunctionRow . mxFitFunctionWLS . mxGREMLDataHandler . mxGenerateData . mxGetExpected . mxJiggle . mxKalmanScores . mxLISRELObjective . mxMI . mxMLObjective . mxMakeNames . mxMarginalNegativeBinomial . mxMarginalPoisson . mxMatrix . mxModel . mxNormalQuantiles . mxOption . mxParametricBootstrap . mxPath . mxPearsonSelCov . mxPenalty . mxPenaltyElasticNet . mxPenaltyLASSO . mxPenaltyRidge . mxPenaltySearch . mxPenaltyZap . mxPower . mxRAMObjective . mxRObjective . mxRename . mxRestore . mxRetro . mxRowObjective . mxRun . mxSE . mxSave . mxSetDefaultOptions . mxSimplify2Array . mxStandardizeRAMpaths . mxThreshold . mxTryHard . mxTypes . mxVersion . myAutoregressiveData_data . myFADataRaw . myGrowthKnownClassData_data . myGrowthMixtureData_data . myLongitudinalData_data . myRegDataRaw_data . myRegData_data . myTwinData_data . mzfData . mzmData . nhanesDemo . nuclear_twin_design_data . numHess1 . numHess2 . omxAllInt . omxApply . omxAssignFirstParameters . omxAugmentDataWithWLSSummary . omxBrownie . omxBuildAutoStartModel . omxCheckCloseEnough . omxCheckEquals . omxCheckError . omxCheckIdentical . omxCheckNamespace . omxCheckSetEquals . omxCheckTrue . omxCheckWarning . omxCheckWithinPercentError . omxConstrainMLThresholds . omxDefaultComputePlan . omxDetectCores . omxGetBootstrapReplications . omxGetNPSOL . omxGetParameters . omxGetRAMDepth . omxGraphviz . omxHasDefaultComputePlan . omxLapply . omxLocateParameters . omxLogical . omxManifestModelByParameterJacobian . omxMatrixOperations . omxMnor . omxModelDeleteData . omxNameAnonymousParameters . omxParallelCI . omxQuotes . omxRAMtoML . omxRMSEA . omxReadGRMBin . omxSapply . omxSaturatedModel . omxSelectRowsAndCols . omxSetParameters . omxSymbolTable . ordinalTwinData . predict.MxModel . rvectorize . summary.MxModel . tr . twinData . twin_NA_dot_data . vec2diag . vech . vech2full . vechs . vechs2full .
Some associated R codes: 0ClassUnion.R . DefinitionVars.R . DiagMatrix.R . FullMatrix.R . IdenMatrix.R . LowerMatrix.R . MxAlgebra.R . MxAlgebraConvert.R . MxAlgebraFunctions.R . MxAlgebraObjective.R . MxApply.R . MxAutoStart.R . MxAvailableOptimizers.R . MxBaseNamed.R . MxBounds.R . MxCommunication.R . MxCompare.R . MxCompute.R . MxConstraint.R . MxCycleDetection.R . MxData.R . MxDataWLS.R . MxDeparse.R . MxDependencies.R . MxDetectCores.R . MxErrorHandling.R . MxEval.R . MxExpectation.R . MxExpectationBA81.R . MxExpectationGREML.R . MxExpectationHiddenMarkov.R . MxExpectationLISREL.R . MxExpectationMixture.R . MxExpectationNormal.R . MxExpectationRAM.R . MxExpectationStateSpace.R . MxExponential.R . MxFIMLObjective.R . MxFactorScores.R . MxFitFunction.R . MxFitFunctionAlgebra.R . MxFitFunctionGREML.R . MxFitFunctionML.R . MxFitFunctionMultigroup.R . MxFitFunctionR.R . MxFitFunctionRow.R . MxFitFunctionWLS.R . MxFlatModel.R . MxFlatSearchReplace.R . MxGraph.R . MxGraphviz.R . MxInterval.R . MxLISRELModel.R . MxLISRELObjective.R . MxMI.R . MxMLObjective.R . MxMMI.R . MxMatrix.R . MxMatrixFunctions.R . MxModel.R . MxModelDisplay.R . MxModelFunctions.R . MxModelParameters.R . MxMultiModel.R . MxNamespace.R . MxObjectiveMetaData.R . MxOptions.R . MxPPML.R . MxPath.R . MxPenalty.R . MxPredict.R . MxRAMModel.R . MxRAMObjective.R . MxRAMtoML.R . MxRObjective.R . MxRename.R . MxReservedNames.R . MxRestore.R . MxRetro.R . MxRobustSE.R . MxRowObjective.R . MxRun.R . MxRunHelperFunctions.R . MxSE.R . MxSaturatedModel.R . MxSearchReplace.R . MxSquareBracket.R . MxSummary.R . MxSwift.R . MxThreshold.R . MxTryHard.R . MxTypes.R . MxUnitTesting.R . MxUntitled.R . MxVersion.R . OriginalMx.R . SdiagMatrix.R . StandMatrix.R . SymmMatrix.R . UnitMatrix.R . ZeroMatrix.R . cache.R . omxBrownie.R . omxConstrainThresholds.R . omxGetNPSOL.R . omxReadGRMBin.R . zzz.R . Full OpenMx package functions and examples

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