Help with UnivariateTwinAnalysis_MatrixRawConACE.R

mxCI(reference, interval = 0.95, type=c("both", "lower", "upper"))

reference
A character vector of free parameters, mxMatrices, mxMatrix elements and mxAlgebras on which confidence intervals for free parameters are to be estimated, listed by name.

So once you have an algebra which computes ACE.A/ACE.V (say named stdA) you can request

mxCI(stdA)

Here std stands for standardized, not sexually transmitted disease :)

Access to the parameter estimates from a fitted model can be had in a couple of ways. One is


fittedACE <- mxRun(ACE)
print(fittedACE.A)


and another is via the summary

sumACE <- summary(fittedACE)
print(sumACE$parameters)


Yet another way is to use the wonderful function omxGetParameters. From ?omxGetParameters

omxGetParameters(model, indep = FALSE, free = c(TRUE, FALSE, NA),
fetch = c('values', 'free', 'lbound', 'ubound', 'all'))
Arguments
model
a MxModel object
indep
fetch parameters from independent submodels.
free
fetch either free parameters (TRUE), or fixed parameters or both types. Default value is TRUE.
fetch
which attribute of the parameters to fetch. Default choice is ‘values’.