Scalar giving the kind of edges to create for directed
graphs. If this is out then all vertices of the
first kind are connected to the others; in specifies
the opposite direction;
Value
An igraph graph, with the type vertex attribute set.
concept
Bipartite graph
Two-mode network
Details
Bipartite graphs have a type vertex attribute in
igraph, this is boolean and FALSE for the vertices of the first
kind and TRUE for vertices of the second kind.