logDet.corStruct {nlme}  R Documentation 
This method function extracts the logarithm of the determinant of a
squareroot factor of the correlation matrix associated with
object
, or the sum of the logdeterminants of squareroot
factors of the list of correlation matrices associated with
object
.
## S3 method for class 'corStruct' logDet(object, covariate, ...)
object 
an object inheriting from class 
covariate 
an optional covariate vector (matrix), or list of
covariate vectors (matrices), at which values the correlation matrix,
or list of correlation matrices, are to be evaluated. Defaults to

... 
some methods for this generic require additional arguments. None are used in this method. 
the logdeterminant of a squareroot factor of the correlation matrix
associated with object
, or the sum of the logdeterminants of
squareroot factors of the list of correlation matrices associated
with object
.
JosÃ© Pinheiro and Douglas Bates bates@stat.wisc.edu
logLik.corStruct
,
corMatrix.corStruct
,
logDet
cs1 < corAR1(0.3) logDet(cs1, covariate = 1:4)