Cytoscape Wiki* GaryBader - What is the definition of a group in Cytoscape? Is it just a set? If so, what things can be in the set? Is this correct? "A group is a set of one or more nodes (CyNode) and zero or more edges (CyEdge) that connect nodes in the group. A group can be treated as a node (CyNode) itself by being the source or target of an edge."
I said one or more nodes because I assume it doesn't make sense for a group to have zero nodes - is that true? Maybe there is a case for a group to have zero nodes.
This is different than the hyperedge, which is a set of two or more nodes. The hyperedge cannot contain other edges and cannot be treated as a node itself. (I'm assuming that it doesn't make sense to create a hyperedge with 0 or 1 nodes).