VarCorr.nlmm {nlmm} | R Documentation |
Extract Variance-Covariance Matrix
Description
This function extracts the variance-covariance matrix of the random effects from a fitted nlmm
object.
Usage
## S3 method for class 'nlmm'
VarCorr(x, sigma = NULL, ...)
Arguments
x |
an object of |
sigma |
not used. |
... |
not used. |
Details
This function returns the variance or the variance-covariance matrix of the random effects. The generic function VarCorr
is imported from the nlme
package (Pinheiro et al, 2014).
Author(s)
Marco Geraci
References
Pinheiro J, Bates D, DebRoy S, Sarkar D and R Core Team (2014). nlme: Linear and Nonlinear Mixed Effects Models. R package version 3.1-117, https://CRAN.R-project.org/package=nlme.
See Also
Examples
## Not run:
data(rats)
fit <- nlmm(y ~ trt*time, random = ~ time, group = id, data = rats, cov = "pdSymm",
control = nlmmControl(multistart = FALSE))
# Symmetric variance-covariance of random intercepts and slopes
VarCorr(fit)
## End(Not run)
[Package nlmm version 1.1.0 Index]