identify to pick the
endpoints of the link to be deleted or added, and asks for confirmation before
committing. If the result is not assigned to a new object, the editing
will be lost - as in edit.edit.nb(name, coords, polys=NULL, bbs=NULL, ...)nbnb with the edited list of integer vectors containing neighbour region number ids, with added attributes tallying the added and deleted links.summary.nb, plot.nb