logDet.pdMat {nlme} | R Documentation |
This method function extracts the logarithm of the determinant of a
square-root factor of the positive-definite matrix represented by
object
.
logDet(object)
object |
an object inheriting from class pdMat , representing
a positive definite matrix. |
the log-determinant of a square-root factor of the positive-definite
matrix represented by object
.
Jose Pinheiro and Douglas Bates
pd1 <- pdSymm(diag(1:3)) logDet(pd1)