R: Extract Log-Determinant from a pdMat Object

logDet.pdMat {nlme}

R Documentation

Extract Log-Determinant from a pdMat Object

This method function extracts the logarithm of the determinant of a square-root factor of the positive-definite matrix represented by object.

## S3 method for class 'pdMat'
logDet(object, ...)

`object`	an object inheriting from class `pdMat`, representing a positive definite matrix.
`...`	some methods for this generic require additional arguments. None are used in this method.

the log-determinant of a square-root factor of the positive-definite matrix represented by object.

Jose Pinheiro and Douglas Bates bates@stat.wisc.edu

pd1 <- pdSymm(diag(1:3))
logDet(pd1)

[Package nlme version 3.1-104 Index]