RuntimeApproximationSets.java

RuntimeApproximationSets.java

        Instrumenter instrumenter = new Instrumenter()
                .withProblem("UF1")
                .withFrequency(100)
                .attachApproximationSetCollector();

        new Executor()
                .withProblem("UF1")
                .withAlgorithm("NSGAII")
                .withMaxEvaluations(10000)
                .withInstrumenter(instrumenter)
                .run();

        Accumulator accumulator = instrumenter.getLastAccumulator();

        List<Integer> xs = new ArrayList<Integer>();
        List<Double> ys = new ArrayList<Double>();

        for (int i = 0; i < accumulator.size("NFE"); i++) {
            // determine the maximum objective value
            double maxObj = Double.NEGATIVE_INFINITY;

            for (Solution solution : (List<Solution>)accumulator.get("Approximation Set", i)) {
                maxObj = Math.max(maxObj, solution.getObjective(0));
            }

            // update the series to plot
            xs.add((Integer)accumulator.get("NFE", i));
            ys.add(maxObj);
        }

        new Plot()
                .line("Objective 1 (Max)", xs, ys)
                .show();