GA                      Genetic Algorithm for LHD
LaPSO                   Particle Swarm Optimization for LHD
OA2LHD                  Transfer an Orthogonal Array (OA) into a LHD
OASA                    Orthogonal-Array-Based Simulated Annealing
SA                      Simulated Annealing for LHD
SA2008                  Simulated Annealing for LHD with
                        Multi-objective Optimization Approach
SLHD                    Sliced Latin Hypercube Design (SLHD)
dij                     Calculate the Inter-site Distance
exchange                Exchange two random elements
phi_p                   Calculate the phi_p Criterion
rLHD                    Generate a random Latin Hypercube Design (LHD)
