Re: [igraph] degree according to vertex attributes

[Tamás Nepusz]

Hi Dominik,

As you wrote earlier, the first problem can be resolved by using 
delete.vertices=FALSE when calling subgraph.edges (sorry, I thought this is the 
default).

Re the second problem: use get.edgelist(graph, names=FALSE); this will give you 
a numeric edge list and this is what you need in later steps.

Best,
Tamas