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I am using CommunityGraphPlot on a network with 500ish nodes. I am defining the graph using a variable adjmatrix which is the adjacency matrix of the network. Right now the nodes are just named by number. I have a list vertexnames where the index of each entry is that number node. How do I use CommunityGraphPlot so that each vertex is labelled with the corresponding name in vertexnames?

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  • $\begingroup$ What do you get from Options[CommunityGraphPlot]? $\endgroup$ – Jason B. Jan 25 '17 at 2:36
  • $\begingroup$ The relevant Option seems to be VertexLabels although I don't know how to assign them to the list entries. $\endgroup$ – tharvey Jan 25 '17 at 2:43
  • $\begingroup$ Neither do I, but I'd start with smaller examples to figure out the syntax, or look at the help page to see if it gives examples on VertexLabels $\endgroup$ – Jason B. Jan 25 '17 at 2:46
  • $\begingroup$ Is this not practically the same question you posted yesterday, but with fewer details? $\endgroup$ – MarcoB Jan 25 '17 at 4:28
  • $\begingroup$ I intended this one to be about how to label the vertices and the one yesterday to be about the display size. I cannot figure out the syntax for labelling vertices, even after looking through the documentation on Wolframs site. $\endgroup$ – tharvey Jan 25 '17 at 4:38
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Read up on VertexLabels and Thread.

Here's an example—first we create an example graph with no human readable vertex names and a list of names:

g = ExampleData[{"NetworkGraph", "DolphinSocialNetwork"}];
names = VertexList[g];
g = IndexGraph[g];

Then label the nodes:

CommunityGraphPlot[g, VertexLabels -> Thread[VertexList[g] -> names]]
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