Remove specific vertices from the graph
remove_vertices(x, vertices)graph without the removed vertices
Removes specific vertices from a graph (potentially bipartite) of
class network or igraph.
The vertices to be removed can either be their id's or their names (if they
exist in the graph object). The algorithm will first check if the
vertices coincide with vertex names that are present in the object
(if they exist) and, if they match, the vertices are removed according to
their names. If they do not match, or if there are no vertex names in the
graph object, vertices is assumed to refer to vertex id's.