Sets or updates the covariance matrix of random effects

Use to set or update the covariance matrix of random effects in a model object.

randomEffect(
  .Object,
  effect,
  value = NULL,
  isDiagonal = TRUE,
  isFrozen = FALSE,
  ...
)

Arguments

.Object

Model object

effect

One or more names of available random effects.

value

Initial values for the diagonal elements of the covariance matrix of random effects (if isDiagonal = TRUE, or initial values for the lower triangular elements (including diagonal elements) of the covariance matrix (if isDiagonal = FALSE) in a row-wise order.

isDiagonal

Set to TRUE to if the covariance matrix of the specified random effects is a diagonal matrix. or FALSE if not.

isFrozen

Set to TRUE to freeze the covariance matrix of random effects.

...

Additional arguments