Actually I don't fully understand this function.
The signature is:
int igraph_contract_vertices(igraph_t *graph,
const igraph_vector_t *mapping,
const igraph_attribute_combination_t *vertex_comb);
'graph' is the input graph. Where is the new graph returned?
On 19 September 2016 at 15:17, Szabolcs Horvát <[email protected]> wrote:
> Hello everyone,
>
> Quick question about contract_vertices():
>
> http://igraph.org/c/doc/igraph-Structural.html#igraph_contract_vertices
>
> I don't have attributes. Can I just pass vertex_comb=NULL?
>
> Szabolcs
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