A Hybrid Epigraph Directions Method for Nonsmooth and Nonconvex Constrained Optimization via Generalized Augmented Lagrangian Duality and a Genetic Algorithm

Table 23

Statistical Analysis obtained by IED + GA in the engineering problems.

Engineering problems	IED + GA
	best	worst	mean	sd
The Tension/Compression String	0.0128	0.0164	0.0144	0.0009
The Speed Reducer	2996.7	3039.7	3015.0	13.7485
The Welded Beam	2.4151	5.4177	3.1995	0.7005
The Pressure Vessel	6477.2	8787.4	7454.1	636.1933