numberOfLinesOfCode for container

Why do we have numberOfLinesOfCode metric for a namespace and not for a package? May be we should define numberOfLinesOfCode at the level of FAMIXContainer to make it more general. In fact, in all the subclasses of a container, it is only the package that does not have numberOfLinesOfCode metric. We are doing a FAMIXDiff browser (to see the changes between two models) and see what are the metrics that can be interesting for each entity.

Anne and Usman