This is an S3 generic function. See methods("difference")
for the actual implementations for various S3 classes. Initially
it is implemented for igraph graphs (difference of edges in two graphs),
and igraph vertex and edge sequences. See
difference.igraph
, and
difference.igraph.vs
.
difference(...)
Depends on the function that implements this method.
Arguments, their number and interpretation depends on
the function that implements difference
.