get_covbeta {pbkrtest} | R Documentation |
At the optimum the covariance is available as vcov(lmer-model)
. This function
computes cov(beta)
at non (RE)ML estimates of varpar
.
get_covbeta(varpar, devfun)
varpar |
variance parameters; |
devfun |
deviance function as a function of theta only. |
The covariances matrix of the fixed effects at supplied varpar
values.
Rune Haubo B. Christensen. Adapted to pbkrtest by Søren Højsgaard.