Re: [igraph] Edge ID numberings

[Tamas Nepusz]

Hi,

> I was wondering if the 'eid' used in many of the functions comes from the 
> location in the edge list? e.g. if we had a graph with 10 edges then the eid 
> values would be drawn from the set {0,1,2,3,4,5,6,7,8,9}?
Yes, exactly. If you have m edges, then the edges are numbered from 0 to n-1. 
This has the somewhat unpleasant consequence that the edges are renumbered 
after a delete_edges operation.

Tamas