This generic function extracts the fixed and random components of bootstrapped estimates of an lqmm
object.
extractBoot(object, which = "fixed")
# S3 method for boot.lqmm
extractBoot(object, which = "fixed")
an object of class
boot.lqmm
.
character indicating whether "fixed"
or "random"
parameters.
a matrix of bootstrapped estimates.
The "random"
parameters refer to the "raw" parameters of the variance-covariance matrix of the random effects as returned by lqmm.fit.gs
and lqmm.fit.df
.
# NOT RUN { ## Orthodont data data(Orthodont) # Random intercept model fit <- lqmm(distance ~ age, random = ~ 1, group = Subject, tau = 0.5, data = Orthodont) fit.boot <- boot(fit) # extract fixed effects B <- extractBoot(fit.boot, which = "fixed") # covariance matrix estimated fixed parameters cov(B) # }