object
are extracted.## S3 method for class 'glsStruct':
fitted(object, glsFit, \dots)glsStruct,
representing a list of linear model components, such as
corStruct and varFunc objects.logLik
(log-likelihood), beta (coefficients), sigma (standard
deviation for error term), varBeta (coefficients' covariance
matrix), fitted (fitted vobject.gls, residuals.glsStruct