objects that are supplied as arguments are averaged in a way that makes sense for the object class, i.e. taking into account the particular bad-data codes of that particular class.
composite(object, ...)either a list of '>oce objects, in which case this is the only argument, or a single '>oce object, in which case at least one other argument (an object of the same size) must be supplied.
Other functions that create composite objects: 
composite,amsr-method,
composite,list-method