[igraph] as.numeric ( edge sequence )

[Yulia Matveyeva]

Dear igraph-community,
 
 If es  is an edge sequence,
can I be sure that as.numeric(es) will always give me the ids of edges under 
consideration.

So if I have 

> es
Edge sequence:
          
[0] 1 -- 0
[2] 3 -- 0
[3] 4 -- 3
[4] 5 -- 4
[5] 7 -- 4
[6] 6 -- 4

> as.numeric(es)
[1] 0 2 3 4 5 6                                                                 
                                                                 

Can I be sure that this behaviour will always be the same ?

The thing is that I would like to sort an edge sequence by the weights of the 
edges.
edges <- get.edges(mst1, E(mst1)[as.numeric(es)[order(es$weight, decreasing = 
T)]])
Is this a good (reliable) method to do this ?

Thank you very much in adbance. I would greatly appreciate your answers.

-- 
Sincerely yours,
Yulia Matveyeva,
Department of Statistical Modelling,
Faculty of Mathematics and Mechanics,
St Petersburg State University, Russia