extract the covariance of fixed effects, or both fixed and random effects.
Usage
# S3 method for class 'dsem'
vcov(object, which = c("fixed", "random", "both"), ...)
Arguments
- object
output from dsem
- which
whether to extract the covariance among fixed effects, random effects, or both
- ...
ignored, for method compatibility
Value
A square matrix containing the estimated covariances among the parameter estimates in the model.
The dimensions dependend upon the argument which, to determine whether fixed, random effects,
or both are outputted.