...: multiple objects inheriting from "hglmc" to be combined.
x: an R object.
Returns
The combine function c() returns an object of class "hglmc". The is.hglmc function returns TRUE if the object inherits from class "hglmc" otherwise FALSE.
Details
The 'HGLM' constraints are all of class "hglmc"
and can be combined with the typical combine function c(). To verify that an object is a 'HGLM' constraint, the function is.hglmc can be used.