Get a named variance-covariance matrix from a model object (internal function)
get_vcov(model, ...)# S3 method for default
get_vcov(model, ...)
# S3 method for polr
get_vcov(model, ...)
# S3 method for glimML
get_vcov(model, ...)
# S3 method for multinom
get_vcov(model, ...)
# S3 method for crch
get_vcov(model, ...)
# S3 method for scam
get_vcov(model, ...)
Model object
The "Model-Specific Arguments" section below gives a list of arguments which can modify the behavior of this function for certain models (e.g., mixed-effects or bayesian).
A named square matrix of variance and covariances. The names must match the coefficient names.