How to change the color of edges?

[fanyuan-lab]

Dear Sir or Madam,

Nodes: 20 blue nodes (n_I), 20 red nodes (n_II), 60 black nodes (n_0). That means a total of 100 nodes.
Links: 250 random links between all nodes with black color, 10 random additional links with blue color between blue nodes only, 20 random additional links with red color between red nodes only.

It would be good to try and make the network as clear as possible, though I don’t know how feasible that is with a 100 nodes. We have to try to see :)
For example, to make the visual representation simpler, it might be good to have blue nodes together on the left, black nodes together in the center, and red nodes together on the right.

But I find, it is difficult for me accomplish the task by GraphPlot package. Could you give me a favor?

Best,
Fanyuan

[hdavid16]

You can use the community_layout to cluster your 3 communities.