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How to create isolate nodes in graph?

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David McVea
David McVea on 8 Jan 2021
Answered: Kelly Kearney on 8 Jan 2021
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?

Answers (1)

Kelly Kearney
Kelly Kearney on 8 Jan 2021
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).




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