On 8/17/2013 4:42 AM, guymcheers wrote: > Who can tell me this following optimization statement is successful or > fail, when I use the gamultiobj toolbox? > > "Optimization terminated: average change in the spread of Pareto > solutions less than options.TolFun." > > If it means fail, what is the reason? > > If it means successful, what does it mean? > > "TolFun" means what? > > > Many thanks:) > > > guymcheers!
This is a good exit message, but you have found some deficiencies in the documentation that I aim to address in the future. The documentation does not describe what "spread of Pareto solutions" is. This is a notion in Kalyanmoy Deb's book "Multi-Objective Optimization using Evolutionary Algorithms." Basically, the idea is that the Pareto front is not changing much toward the end of the optimization, so the solver stops.