'update' will update and (by default) re-fit a model. It
does this by extracting the call stored in the object,
updating the call and (by default) evaluating that call.
Usage
"update" (object, ..., evaluate = TRUE)
Arguments
object
an object of "edcc" class
...
additional arguments to the call, or arguments
with anged values.
evaluate
If true evaluate the new call else return
the call.