How to add vertex/edge labels to existing graph

Question

If I have already created a graph using Graph. Later, I want to add to the graph some vertex and/or edge labels, how can I do that?

Thank you.

Vitaliy Kaurov · Accepted Answer · 2012-02-21 21:04:35Z

8

A random graph without any labeling:

g = RandomGraph[{11, 21}]

enter image description here

You can use SetProperty to add labeling P.S.

SetProperty[g, {EdgeLabels -> {3 \[UndirectedEdge] 4 -> "COOL"}, 
  VertexLabels -> {1 -> "STUFF"}}]

enter image description here

answered Feb 21, 2012 at 21:04

Vitaliy Kaurov

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1

$\begingroup$ actually in version 8.0.0.0, it is not working SetProperty[g, {EdgeLabels -> {3 \[UndirectedEdge] 4 -> "COOL"}, VertexLabels -> {1 -> "STUFF"}}]. Looks like SetProperty can only set one property at a time. $\endgroup$
– Qiang Li
Commented Feb 21, 2012 at 22:26

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