Thanks! I fixed it now.
2013/11/19 Tamás Nepusz <[email protected]> > Hi > > igraph edgelist files use zero-based vertex indices, so your edgelist file > contains 1134 vertices since the highest vertex ID in the file is 1133. > Subtract 1 from every edge ID in the file and you should be okay. > (However, note that vertex indices in R start from 1, so if you have a > vertex with ID=X in your file, this will be vertex X+1 in R). > > In case you wonder why edgelist files are zero-based: this is for sake of > compatibility with edgelist files created from the raw C API of igraph or > from igraph’s Python interface because those are zero-based. > > -- > T. > > On Tuesday, 19 November 2013 at 16:00, Prithwiraj MUKHERJEE wrote: > > Hi > > I have attached an edgelist file "email_edges.txt". The graph has 1133 > vertices. I am reading it as > > G<-read.graph("email_edges.txt", format="edgelist") > > On checking the graph, it has 1134 vertices (one extra vertex). Is there > something I am missing? > > I am using igraph's latest version (i updated it today) on R 2.15.3 (64 > bit) for Windows 7. > > Regards > Prithwiraj > > > _______________________________________________ > igraph-help mailing list > [email protected] > https://lists.nongnu.org/mailman/listinfo/igraph-help > > Attachments: > - email_edges.txt > > > > _______________________________________________ > igraph-help mailing list > [email protected] > https://lists.nongnu.org/mailman/listinfo/igraph-help > >
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