Table 1.

Topological parameters of co-occurrence networks.

Network features	PBS	E. coli BL21	E. coli BL21 + P. relictum	E. coli O86:B7	E. coli O86:B7 + P. relictum	P. relictum
Nodes	231	137	267	261	199	221
Edges	4417	591	1787	6629	991	1709
Positive	3,041 (68.9%)	476 (80.5%)	1,386 (77.6%)	3,827 (57.7%)	822 (82.9%)	1,232 (72.1%)
Negative	1,376 (31.2%)	115 (19.5%)	401 (22.4%)	2,802 (42.3%)	169 (17.1%)	477 (27.9%)
Network diameter	3	10	13	4	10	12
Average degree	38.242	8.628	13.386	50.797	9.96	15.466
Weighted degree	12.07	4.265	6.113	7.018	5.287	5.83
Average path length	1.909	3.47	3.871	1.993	3.609	3.716
Modularity	1.459	0.974	1.105	2.996	0.785	0.872
Number of modules	6	18	27	13	20	32
Average clustering coefficient	0.719	0.556	0.621	0.658	0.538	0.623