[igraph] rewire

[Qunawei Zhang]

Hello:

I have some questions about rewire, would you please explain to me? Thanks

(1) Each iteration, two edges are randomly selected right? And the new edges (which generated by the rewiring) can also be selected and to be rewire again?

(2) If I set  niter = 100, does it mean 100 edge pairs will be rewired? Is there a probability that controls whether to rewire each selected edge pairs? Some times a randomly selected edge pair can not be rewired, will this counted a trial or only successfully rewired ones will be counted as a trail?

(3) Sometimes, the rewired network will be divided into several components, even when the original network is one connected component. Is there is a way to control the rewire process make the network connected? I tried to just selected the connected random network, but I can only get a few from 1000 random network, and I need much more.

 rewire(graph, mode = c("simple", "loops"), niter = 100) 

niter

Number of rewiring trials to perform.

Thanks.

Best

Quanwei