Table 8.

Evaluation results of the pressure vessel design ($\mathit{SIs}$ are statistical indicators and $\mathit{DVs}$ are design variables).

		PEOA	RSA	MPA	TSA	WOA	GWO	MVO	TLBO	GSA	PSO	GA
$\mathit{SIs}$	Mean	5883.043	12,277.23	5941.73	6495.49	8366.765	6476.968	5906.445	31,739.83	23,227.89	40,801.07	31,420.31
	Best	5882.901	7754.352	5941.73	5925.71	6331.27	5912.494	5888.455	18,534.82	15,456.32	19,543.95	10,111.52
	Worst	5884.245	18,129.78	5941.73	7346.794	11,303.01	7229.541	6034.021	61,688.65	40,575.35	86,266.9	55,069.98
	Std	0.316128	3043.911	8.53E−06	516.9775	1292.405	370.9219	31.59569	11,131.22	6880.321	16,575.37	12,939.3
	Median	5882.903	12,673.37	5941.73	6369.186	8359.384	6416.483	5896.843	28,139.58	21,505.51	37,277.24	29,995.8
	Rank	1	7	3	5	6	4	2	10	8	11	9
$\mathit{DVs}$	Ts	0.778027	0.907016	0.778027	0.782743	0.900699	0.791713	0.779624	1.48344	1.474078	1.550955	1.256885
	Th	0.384579	0.673856	0.384579	0.394416	0.429187	0.392455	0.386047	1.891043	1.218961	2.730243	0.734408
	R	40.31228	40.65186	40.31228	40.49696	44.44714	41.00272	40.39207	57.20355	72.14816	43.36799	50.50276
	L	200	200	200	197.6681	149.4709	190.6063	198.9133	84.2132	14.55677	168.629	116.7856