Dear colleagues, I'm trying to have a look at the Assortative and Disassortative( http://en.wikipedia.org/wiki/Assortative_mixing) of the network I have. But it seems that the igraph hasn't mentioned that yet. I have to get the in/out degree of the vertices of each edge and calculate the Pearson's Correlation coefficient which seems to be quite a huge task for me. :( So I wonder if anyone had done that before and give me some hints on it? Thank you in anticipation! Weijia [[alternative HTML version deleted]]