Pars is used to update the coefficients of the model components
of object and the individual log-likelihood
contributions of each component are added together.## S3 method for class 'gnlsStruct':
logLik(object, Pars, conLin, \dots)gnlsStruct,
representing a list of model components, such as
corStruct and varFunc objects, and attributes
specifying the underlying nonlinear model and the response variable."Xy", corresponding to a regression
matrix (X) combined with a response vector (y), and
"logLik", corresponding tobject,
evaluated at Pars.gnls, gnlsStruct