This method function extracts the positive-definite matrix represented
by x.
# S3 method for pdMat
as.matrix(x, ...)a matrix corresponding to the positive-definite matrix represented by
x.
an object inheriting from class "pdMat",
representing a positive-definite matrix.
further arguments passed from other methods.
José 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.
pdMat, corMatrix