Get the expected vcov matrix
Extract the expected covariance matrix from an mxModel()
umxExpCov(object, latents = FALSE, manifests = TRUE, digits = NULL, ...)
expected covariance matrix
https://openmx.ssri.psu.edu/thread/2598 Original written by https://openmx.ssri.psu.edu/users/bwiernik
Other Reporting functions: 
RMSEA.MxModel(),
RMSEA.summary.mxmodel(),
RMSEA(),
extractAIC.MxModel(),
loadings(),
residuals.MxModel(),
tmx_show.MxMatrix(),
tmx_show(),
umxCI_boot(),
umxCI(),
umxConfint(),
umxExpMeans(),
umxFitIndices(),
umxRotate()
require(umx)
data(demoOneFactor)
manifests = names(demoOneFactor)
m1 = umxRAM("One Factor", data = demoOneFactor, type = "cov",
	umxPath("G", to = manifests),
	umxPath(var = manifests),
	umxPath(var = "G", fixedAt = 1)
)#'
vcov(m1) # supplied by OpenMx
umxExpCov(m1, digits = 3)Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.