Fig. 2
From: Coevolution of a multilayer node-aligned network whose layers represent different social relations
The numbers of calls and collocations between nodes who are to-be-nominees in one semester (blue asterisk), to-be-nominees in two semesters (green plus signs), and not-to-be-nominees (red circles). Generally, to-be-nominees have higher numbers of calls and collocations than not-to-be-nominees. The continuous lines show the average values for the circles of the same color. The separation is large between red and green dotted lines, red and blue lines, but small between dashed blue and dotted green lines. Most of the to-be-nominees edges appear in the first and second semester, since very few new nominations are formed in the fourth semester