> I've tried 3 different versions of code to calculate assortativity via > degree correlation and two of them returned NA, while the third gave some > reasonable numbers. My quistion is: can I trust it and why could 2 other > receipts fail?
I use this: # g is a graph d = degree(g) e = get.edgelist(g) x = c(e[,1], e[,2]) y = c(e[,2], e[,1]) dx = d[x] dy = d[y] cor(dx, dy) This corresponds to equation (7.82) page 230 of Mark Newman's book (Networks). Best, Massimo Franceschet _______________________________________________ igraph-help mailing list [email protected] https://lists.nongnu.org/mailman/listinfo/igraph-help
