| Matrix {nlme} | R Documentation | 
This function is generic; method functions can be written to handle
specific classes of objects. Classes which already have methods for
this function include pdMat, pdBlocked, and 
reStruct.
matrix(object) <- value
object | 
 any object to which   | 
value | 
 a matrix, or list of matrices, with the same dimensions as
  | 
will depend on the method function; see the appropriate documentation.
Jose Pinheiro and Douglas Bates bates@stat.wisc.edu
## see the method function documentation