surrogateopt: output function
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How do we create a customize output function for the 'surrogateopt' that will show the solution at every iteration. I need am example for better understanding. Thank you.
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Alan Weiss
2022-8-9
Try this.
lb = [-3 -3];
ub = -lb;
opts = optimoptions('surrogateopt','OutputFcn',@listout);
obj = @(x)100*(x(2) - x(1)^2)^2 + (1 - x(1))^2;
[sol,fval] = surrogateopt(obj,lb,ub,opts)
function stop = listout(x,optimValues,state)
stop = false;
switch state
case 'iter'
nval = optimValues.funccount;
y = optimValues.currentX;
fprintf("Number of fevals = %g, x = [%g,%g]\n",nval,y(1),y(2))
end
end
Alan Weiss
MATLAB mathematical toolbox documentation
3 个评论
Geopaul
2022-8-9
Geopaul
2022-8-11
Alan Weiss
2022-8-11
For an example (uses different syntax, be careful) see https://www.mathworks.com/help/gads/custom-output-function-for-genetic-algorithm.html.
Alan Weiss
MATLAB mathematical toolbox documentation
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