Copyright © 2007-2024 The OpenMx Project
The newest release of OpenMx, version 2.5.2, is now available through CRAN [1] and through our own repository [2].
New features include:
mxFactorScores()
[3].
mxGenerateData()
[4] can now generate data conditional on definition variables.
mxTryHard()
[5]. In particular, there are now four additional wrapper functions--mxTryHardOrig()
, mxTryHardSSCT()
, mxTryHardWideSearch()
, and mxTryHardOrdinal()
--which have default values for certain arguments that are tailored toward a specific purpose.
imxRobustSE()
, which calculates robust standard errors for parameter estimates, from the "sandwich estimator."
logp2z()
(standard-normal quantile function from log probabilities), lgamma1p()
(accurate lgamma(x+1)
for small x
), the Bessel functions, dbeta()
, and pbeta()
. The latter two are prototypes for making the 'd' and 'p' probability-distribution functions from the 'stats' package usable in MxAlgebras.
Bug fixes and performance tweaks include:
mxGREMLDataHandler()
[7] when blockByPheno=FALSE
. The other pertained to the mxGREML feature's automated handling of missing data when some of the derivatives of the 'V' matrix are MxAlgebras.
mxFactorScores()
[3] now returns factor scores in row ordering of the original raw data, and not in the row ordering of the auto-sorted data.
mxFactorScores()
[3] with type="ML"
or type="WeightedML"
no longer fails with an error when standard errors are not available from the input model.
mxGenerateData()
[4] now works properly with continuous-time state-space models.
Links
[1] https://cran.r-project.org/web/packages/OpenMx/
[2] https://openmx.ssri.psu.edu/installing-openmx
[3] https://openmx.ssri.psu.edu/docs/OpenMx/latest/_static/Rdoc/mxFactorScores.html
[4] https://openmx.ssri.psu.edu/docs/OpenMx/latest/_static/Rdoc/mxGenerateData.html
[5] https://openmx.ssri.psu.edu/docs/OpenMx/latest/_static/Rdoc/mxTryHard.html
[6] https://openmx.ssri.psu.edu/docs/OpenMx/latest/_static/Rdoc/mxAlgebra.html
[7] https://openmx.ssri.psu.edu/docs/OpenMx/latest/_static/Rdoc/mxGREMLDataHandler.html
[8] https://openmx.ssri.psu.edu/2015/10/version-231-openmx-now-available