Hello, Find the vertices with no inbound edges, i.e. vertices with an in-degree of zero:
which(degree(g, mode="in") == 0) T. On Mon, May 29, 2017 at 7:27 AM, Adrian Dwiputra < [email protected]> wrote: > Hello there, > > Currently I've been trying to identify the vertice from which a complex > directed network begins using igraph package in R. I already tried > 'head_of' and 'tail_of' but the functions only return the heads and tails > of the individual edges, not the network. Does anybody have any advice on > the issue? Is there any way to achieve my objective? > > Many thanks in advance > > Best, > Adrian > > _______________________________________________ > igraph-help mailing list > [email protected] > https://lists.nongnu.org/mailman/listinfo/igraph-help > >
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