Re: [igraph] Error: "At iterators.c:721 : Cannot create iterator, invalid vertex id, Invalid vertex id" while computing shortest path

[Gábor Csárdi]

On Mon, Jun 21, 2010 at 10:02 AM, Tamas Nepusz <address@hidden> wrote:
>> Hi,
>>
>> I invoked  "shortest.paths (graph,row) " function in R in order to
>> compute shortest path in the graph. But I get the following error
>> after a while:
> I made a typical error in my original email; in igraph, vertex indices go 
> from zero to N-1, so you have to type this:
>
> for (i in 0:vcount(g)-1) {
>
> instead of this:
>
> for (i in 1:vcount(g)) {

Well, this seems still wrong, but anyway, the correct way to do this is

for (i in seq_len(vcount(g))-1) {

or maybe even better:

for (i in V(g)) {

Best,
Gabor


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> T.
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-- 
Gabor Csardi <address@hidden>     UNIL DGM