| as.matrix.corStruct {nlme} | R Documentation |
This method function extracts the correlation matrix, or list of
correlation matrices, associated with object.
## S3 method for class 'corStruct' as.matrix(x, ...)
x |
an object inheriting from class |
... |
further arguments passed from other methods. |
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.
Jose Pinheiro and Douglas Bates bates@stat.wisc.edu
Pinheiro, J. C. and Bates, D. M. (2000), Mixed-Effects Models in S and S-PLUS, Springer, New York.
cst1 <- corAR1(form = ~1|Subject) cst1 <- Initialize(cst1, data = Orthodont) as.matrix(cst1)