recalc.corStruct {nlme} | R Documentation |
This method function pre-multiples the "Xy"
component of
conLin
by the transpose square-root factor(s) of the
correlation matrix (matrices) associated with object
and adds
the log-likelihood contribution of object
, given by
logLik(object)
, to the "logLik"
component of
conLin
.
recalc(object, conLin)
object |
an object inheriting from class corStruct ,
representing a correlation structure. |
conLin |
a condensed linear model object, consisting of a list
with components "Xy" , corresponding to a regression matrix
(X ) combined with a response vector (y ), and
"logLik" , corresponding to the log-likelihood of the
underlying model. |
the recalculated condensed linear model object.
This method function is only used inside model fitting functions,
such as lme
and gls
, that allow correlated error terms.
Jose Pinheiro and Douglas Bates