Pars is used to update the coefficients of the model components
of object and the individual (restricted) log-likelihood
contributions of each component are added together. The type of
log-likelihood (restricted or not) is determined by the
settings attribute of object.## S3 method for class 'glsStruct':
logLik(object, Pars, conLin, \dots)glsStruct,
representing a list of linear model components, such as
corStruct and varFunc objects."Xy", corresponding to a regression
matrix (X) combined with a response vector (y), and
"logLik", corresponding tobject, evaluated at Pars.gls, glsStruct