Re: [igraph] subgraph in igraph

[Gábor Csárdi]

On Mon, May 4, 2015 at 9:58 AM, Fatemeh a <address@hidden> wrote:

Hi Gabor,

my question is: dose  "supgraph.edges" function changes nodes indices even when we keep vertices (delete.vertices = FALSE )?  I try it and it didn't but could I generalize it or its behavior is like  "induced.subgraph"?

R igraph functions do not change their arguments, so the original graph is the same. induced.subgraph creates a _new_ graph. It is true that numeric ids in the new graph can be different for the "same" vertices. Please use symbolic ids, i.e. the name vertex attribute.

G. 

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