Table 3.

Statistical evaluation of PSO, EO, GWO, and SSA.

	PSO	EO	GWO	SSA
Maximum	717.97	717.97	717.97	717.97
Minimum	614.05	614.04	613.39	714.38
Average	695.27	706.27	709.95	716.63
STD	40.63	30.78	25.77	1.72
median	714.38	717.51	717.87	717.97
variance	1651.05	947.67	663.86	2.94