Re: [igraph] how to select eid on the basis of an edge attribute

[Tamas Nepusz]

Hi Simone,

> Could this be the a good strategy?
>
> 1) find all the neighbors of v1:
>
> 2) for each neighbor in the list:
>
> 3) check if they are blue-linked with v1 (using get_eids()):
Yup, but since you will be checking the _edges_ adjacent to v1, you  
should find the adjacent edges in step 1 instead of the neighbours. So:

nei_edges = g.adjacent(v1)
for nei_edge in nei_edges:
  if g.es[nei_edge]["color"] == "blue":
    # do this
  else:
    # do that

--
T.