Additional methods which can simplify working with the GEE result object.
# S3 method for class 'tern_gee'
VarCorr(x, sigma = 1, ...)
# S3 method for class 'tern_gee'
QIC(object, ...)(tern_gee)
result of fit_gee().
an optional numeric value used as a multiplier for the
standard deviations. The default is x$sigma or 1
depending on class(x).
further optional arguments passed to other methods (none for the methods documented here).
(tern_gee)
result of fit_gee().
VarCorr() returns the estimated covariance matrix, and
QIC() returns the QIC value.