Dear Thomas, This mailing list will be shut down soon. Please use https://igraph.discourse.group/ instead.
What you quote is a good intuitive handle for understanding betweenness, but if you look at the mathematical definition, https://en.wikipedia.org/wiki/Betweenness_centrality#Definition you will see that if there is a pair of vertices between which there is more than one minimum length path, the betweenness value may not be integer. On Fri, 24 Jul 2020 at 11:58, Scherngell Thomas <thomas.scherng...@ait.ac.at> wrote: > > Dear colleagues, > > > > I have a network of 130 countries with weighted interactions between them. I > am calculating vertex betweenness to rank countries by betweenness, and get > back non-integer values for each vertex (both in the weighted and unweighted > case). Reading that “The vertex and edge betweenness are (roughly) defined by > the number of geodesics (shortest paths) going through a vertex or an edge” I > would expect integer values as result, or do I get something wrong? > > > > Best, > > Thomas > > _______________________________________________ > igraph-help mailing list > igraph-help@nongnu.org > https://lists.nongnu.org/mailman/listinfo/igraph-help _______________________________________________ igraph-help mailing list igraph-help@nongnu.org https://lists.nongnu.org/mailman/listinfo/igraph-help