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mxRefModels does not work with inherited data

Submitted by mhunter on
OpenMx models support inheriting data from a parent, but the mxRefModels function chokes on this.


require(OpenMx)

data(demoOneFactor)
latents = c("G")
manifests = names(demoOneFactor)

m1 <- mxModel("model1", type = "RAM",
manifestVars = manifests, latentVars = latents,
mxPath(from = latents, to = manifests),
mxPath(from = manifests, arrows = 2),
mxPath(from = latents, arrows = 2, free = F, values = 1.0)
)
m2 <- mxModel("model2", type = "RAM",
manifestVars = manifests, latentVars = latents,
mxPath(from = latents, to = manifests),
mxPath(from = manifests, arrows = 2),
mxPath(from = latents, arrows = 2, free = F, values = 1.0)
)

m3 = mxModel("bob", m1, m2,
mxData(cov(demoOneFactor), type = "cov", numObs = 500),
mxFitFunctionMultigroup(c("model1.fitfunction","model2.fitfunction"))
)

m3r = mxRun(m3)
ref <- mxRefModels(m3r, run=TRUE)
#Error in generateReferenceModels(x$fitfunction, x) :
# Model 'model1' does not contain any data

Submitted by mhunter on Thu, 12/03/2015 - 13:01

Does anyone have a plausible use-case for this scenario? I thought it should work initially, but now it seems like nonsense. Multigroup models need their own data, and should not inherit it.
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I convinced the team that this is nonsense. We're leaving it as is.
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