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R
nlme

logDet.reStruct

Extract reStruct Log-Determinants

Description

Calculates, for each of the pdMat components of object, the logarithm of the determinant of a square-root factor.

Usage

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

Arguments

object

an object inheriting from class "reStruct", representing a random effects structure and consisting of a list of pdMat objects.
...

some methods for this generic require additional arguments. None are used in this method.

Value

a vector with the log-determinants of square-root factors of the pdMat components of object.

Author(s)

José Pinheiro

See Also

Examples

rs1 <- reStruct(list(A = pdSymm(diag(1:3), form = ~Score),
  B = pdDiag(2 * diag(4), form = ~Educ)))
logDet(rs1)
nlme

Linear and Nonlinear Mixed Effects Models

v3.1-152
GPL (>= 2) | file LICENCE
Authors
José Pinheiro [aut] (S version), Douglas Bates [aut] (up to 2007), Saikat DebRoy [ctb] (up to 2002), Deepayan Sarkar [ctb] (up to 2005), EISPACK authors [ctb] (src/rs.f), Siem Heisterkamp [ctb] (Author fixed sigma), Bert Van Willigen [ctb] (Programmer fixed sigma), Johannes Ranke [ctb] (varConstProp()), R-core [aut, cre]
Initial release
2021-02-03

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