Fig. 3
From: Mango: combining and analyzing heterogeneous biological networks
Graph Exploration Language examples. a Graphs A and B have different node attributes. Graph C is the result of attribute merging and promotion of A and B. b Graph mathematics. Given two graphs A and B, the dotted addition A.+ B combines nodes and links from graph A and graph B. The non-dotted addition A + B combines graph A with links of Graph B whose end nodes are already contained in graph A. Graph subtraction works similarly. Graph mathematic results depend on operand order; attribute merging and promotion are handled automatically as described in the main text but are not shown in this figure