MASS, minqa, pso, scatterplot3d, NlcOptim, Rsolnp, dfoptim,
subplex, cmaes, crs, nloptr, rgl, rgenoud, GenSA
smacof, analogue, cmaes, crs, dfoptim, GenSA, minqa, NlcOptim,
nloptr, pso, rgenoud, Rsolnp, subplex
MASS, minqa, pso, scatterplot3d, NlcOptim, Rsolnp, dfoptim,
subplex, cmaes, crs, nloptr, rgenoud, GenSA