Non-Pareto optimal points plotted when using multiobjective optimisation and gaplotpareto
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I'm trying to plot a Pareto curve in a multiobjective optimisation (using gaplotpareto) but the resultant curve has some plot points that are non-pareto optimal (see image). Is this a bug or why are non-Pareto optimal plot points included?
The only options I'm setting are the plot options and the only constraints are lower and upper bounds for the solution variables.
opts = gaoptimset('PlotFcns',{@gaplotpareto,@gaplotscorediversity});
[optimal_sol, optimal_fitness, exitFlag, Output] = gamultiobj(fitnessFun, num_vars,[],[],[],[], lower_bounds, upper_bounds, opts);
4 Comments
Rakesh Kumar
on 22 Feb 2016
If there were non-linear constraints, the solver may accept some dominated points if they are feasible. However, in your case, the entire population should be feasible so this is a bug. I have not seen this before so I have to look at the function or at least the bounds to be able to debug this. Can you send this info to my email?
Thanks, Rakesh
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