Extract modelStruct Object Coefficients
Usage
coef(object, unconstrained)
coef(object) <- value
Arguments
object
|
an object inheriting from class modelStruct ,
representing a list of model components, such as corStruct and
varFunc objects.
|
unconstrained
|
a logical value. If TRUE the coefficients
are returned in unconstrained form (the same used in the optimization
algorithm). If FALSE the coefficients are returned in
"natural", possibly constrained, form. Defaults to TRUE .
|
value
|
a vector with the replacement values for the coefficients
associated with object . It must be a vector with the same length
of coef{object} and must be given in unconstrained form.
|
Description
This method function extracts the coefficients associated with each
component of the modelStruct
list.Value
a vector with all coefficients corresponding to the components of
object
.SIDE EFFECTS
On the left side of an assignment, sets the values of the coefficients
of object
to value
. Object
must be initialized (using
initialize
) before new values can be assigned to its
coefficients.Author(s)
Jose Pinheiro and Douglas BatesSee Also
initialize
Examples
library(lme)
lms1 <- lmeStruct(reStruct = reStruct(pdDiag(diag(2), ~age)),
corStruct = corAR1(0.3))
coef(lms1)