Dear all Function graph_tool.generation.price_network has a parameter named *constant factor.* According to graph-tool documents, for undirected graphs, the degree distribution of generated graph should be [image: image.png]. However, when I use different *constant factors *to generate different price network graphs, I notice that all graphs have a same degree distribution. It seems that different *constant factors *have no influence on the degree distributions. For example: g1 = gt.price_network(100000, m=3, directed=False) g2 = gt.price_network(100000, m=3, c=-0.9, directed=False) For g1, the degree distribution should be [image: image.png]. For g2, the degree distribution should be [image: image.png]. When I draw the degree distributions of the two graphs, they are almost the same. So, does the parameter *constant factor really *change the graph degree distribution? Regards, Weitao Han