Return user data from bayesopt

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Pablo García Auñón
评论： Pablo García Auñón 2017-9-26
I am using bayesopt to minimize an objective function. Besides the minimum value of the function, I would like to have addintional information generated inside it when the minimization is completed. A simplified problem would be:
x = optimizableVariable('x',[0,10]);
f_eval = @(x)fun(x);
results = bayesopt(f_eval,x);
function [fitness,userData] = fun(x)
fitness = x.x^2 - 2*x.x + 1;
userData = x.x^3;
end
So I would like to see inside results the value of userData for which x results in a minimum fitness function.
Any idea how to do it?
Thanks!! Pablo

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采纳的回答

Alan Weiss
Alan Weiss 2017-9-26
The syntax for writing an objective function that outputs extra user data is described here. You can see an example here.
Notice that results contains a UserDataTrace property.
Alan Weiss
MATLAB mathematical toolbox documentation

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