get_covbeta {pbkrtest}

R Documentation

Compute cov(beta) as a function of varpar of an LMM

Description

At the optimum cov(beta) is available as vcov(lmer-model). This function computes cov(beta) at non (RE)ML estimates of varpar.

Usage

get_covbeta(varpar, devfun)

Arguments

varpar	variance parameters; varpar = c(theta, sigma).
devfun	deviance function as a function of theta only.

Value

cov(beta) at supplied varpar values.

Author(s)

Rune Haubo B. Christensen. Adapted to pbkrtest by Søren Højsgaard.

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