Table 12. Statistical results of the used algorithms for pressure vessel design problem.
| Algorithm | Best | Mean | Worst | SD |
|---|---|---|---|---|
| TSO | 6,591.539 | 9,358.735 | 15,198.4 | 2,047.207 |
| CTSO1 | 6,934.041 | 9,290.626 | 12,997.45 | 1,833.564 |
| CTSO2 | 6,325.269 | 8,872.022 | 13,581.73 | 2,116.409 |
| CTSO3 | 6,720.31 | 18,807.36 | 55,057.06 | 10,642.19 |
| CTSO4 | 6,485.754 | 8,708.514 | 13,722.88 | 1,568.458 |
| CTSO5 | 6,479.417 | 8,662.113 | 12,317.9 | 1,380.715 |
| CTSO6 | 6,494.753 | 8,878.358 | 13,742.33 | 1,651.033 |
| CTSO7 | 6,782.928 | 8,763.569 | 12,770.58 | 1,438.112 |
| CTSO8 | 6,722.005 | 8,687.164 | 14,207.82 | 1,804.541 |
| CTSO9 | 7,836.811 | 17,484.35 | 38,598.81 | 8,019.801 |
| CTSO10 | 6,794.113 | 8,275.311 | 11,169.49 | 1,131.863 |