Matrix of a corStruct Object

DESCRIPTION:

This method function extracts the correlation matrix, or list of correlation matrices, associated with object.

USAGE:

as.matrix(x) 

REQUIRED ARGUMENTS:

x
an object inheriting from class corStruct, representing a correlation structure.

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 .

SEE ALSO:

,

EXAMPLES:

cst1 <- corAR1(form = ~1|Subject) 
cst1 <- initialize(cst1, data = Orthodont) 
as.matrix(cst1)