This method function extracts the positive-definite matrix represented by x.
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.
"pdMat"
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
pdMat
corMatrix
as.matrix(pdSymm(diag(4)))
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