Figure 8. Cross-correlations between node strength, edge weight and node degree.
(a), (b) Power-law dependence of the average number-based and duration-based node strength on the node degree for the giant components of the four networks. (c), (d) Dependence of 
and 
on the degree product. (e), (f) Average duration-based edge weight 
and number-based edge weight 
as a function of degree product kikj. (g,h) Average duration-based edge weight 
and number-based edge weight 
as a function of strength product 
. The curves for number-weighted node strength have been shifted rightwards horizontally by a factor of 1000 for clarity.