Figure 4. Robustness index heatmaps of the 81 motif topologies with respect to i-step neighbors.

A: Robustness of functional tunability to slowly decaying responses. B: Robustness of functional tunability to pulse responses. Given the 81 motif topologies, 2 time-course objectives, and 20 attempts to identify the model parameter, PSO was implemented 3,240 times.