How to create isolate nodes in graph?

Hello,

I am trying to create an isolate node (degree 0, no edges) in a graph.

G = graph({'a', 'b', 'c','e'},{'c', 'a', 'd',''});

creates an unnamed node attached to e, when what I want is e to be isolated.

Any advice on how to do this?

Thanks.

Answer 1

[Kelly Kearney]

The easiest way would be to simply add the isolated node to the existing graph:

G = graph({'a', 'b', 'c'},{'c', 'a', 'd'});
G = addnode(G, 'e')

Alternatively, you could look at some of the other syntaxes for creating a graph (such as providing an EdgeTable and NodeTable rather than a simple list of source/target nodes).