Matrix of a corStruct Object
Usage
as.matrix(x)
Arguments
x
|
an object inheriting from class corStruct ,
representing a correlation structure.
|
Description
This method function extracts the correlation matrix, or list of
correlation matrices, associated with object
.Value
If the correlation structure includes a grouping factor, the returned
value will be a list with components given by the correlation
matrices for each group. Otherwise, the returned value will be a
matrix representing the correlation structure associated with
object
.Author(s)
Jose Pinheiro and Douglas BatesSee Also
corClasses
, corMatrix
Examples
library(lme)
data(Orthodont)
cst1 <- corAR1(form = ~1|Subject)
cst1 <- initialize(cst1, data = Orthodont)
as.matrix(cst1)