Calculate variance-covariance matrix for a fitted model object

Calculate variance-covariance matrix for a s4t_ageclass_model model object.

Usage

# S3 method for class 's4t_ageclass_model'
vcov(object, ...)

Arguments

object

a s4t_ageclass_model object fitted using fit_ageclass().

...

Other arguments. Not used (needed for generic consistency)

Value

The variance-covariance matrix of coefficients from a fitted s4t_ageclass_model object

Examples

if (FALSE) { # \dontrun{
sim.dat <- sim_simple_s4t_ch(N = 2000)
m1 <- fit_ageclass(ageclass_formula = ~ FL,
                   s4t_ch = sim.dat$s4t_ch)

vcov(m1)
} # }