gmvar_to_gsmvar
class 'gmvar' objects compatible with the functions using
s class 'gsmvar' objects
gmvar_to_gsmvar(gsmvar)
If the provided object has the class 'gsmvar', the provided object
is returned without modifications. If the provided object has the class 'gmvar',
its element $model
is given a new subelement called also model and this is
set to be "GMVAR". Also, the class of this object is changes to 'gsmvar' and then
it is returned.
a class 'gmvar' or 'gsmvar' object.
This exists so that models estimated with earlier versions of the package can be used conveniently.