| recalc.varFunc(nlme) | R Documentation |
This method function pre-multiples the "Xy" component of
conLin by a diagonal matrix with diagonal elements given by the
weights corresponding to the variance structure represented by
objecte 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 varFunc,
representing a variance function 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 heteroscedastic error
terms.
Jose Pinheiro and Douglas Bates