On Sun, Nov 24, 2013 at 12:08 AM, <[email protected]> wrote: > Hello list, > > Please consider the following graph with vertices of two categories ("digit" > and "char"): > > id <- c("1","2","A","B") > category <- c("digit","digit","char","char") > from <- c("1","1","2","A","A","B") > to <- c("2","A","A","B","1","2") > > nodes <- cbind(id,category) > edges <- cbind(from,to) > > g <- graph.data.frame(edges, directed=TRUE, vertices=nodes) > > Now I want to contract the vertices based on the attribute "category":
Try this: g2 <- contract.vertices(g, factor(V(g)$category)) Gabor [...] _______________________________________________ igraph-help mailing list [email protected] https://lists.nongnu.org/mailman/listinfo/igraph-help
