Simulation: fminsearch in a for loop

Question

Nicolas Macallister 2021-8-17

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1411372-simulation-fminsearch-in-a-for-loop

回答： Alan Weiss 2021-8-17

options=optimset('TolFun',1000,'TolX',0.25,'Display','iter','PlotFcns',@optimplotfval);
output=[];fval=[];
for i=1:5
[output(i),fval(i),exitflag,output]=fminsearch(@myfunc,300,i,options);
end

I would like to find an independant set of minima using fminsearch without manually updating @myfunc each time, rather just sending i along with initial guess x0 (300) to the function which corrosponds to an index within the function definition (something like the above code.) Is this possible?

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Answer 1

Alan Weiss 2021-8-17

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1411372-simulation-fminsearch-in-a-for-loop#answer_768692

Do you really want TolFun = 1000? Are you sure?

I am not sure that I understand what you are trying to do, but maybe you have an extra parameter (i in your pseudocode) that you want to pass. If so, then I suggest that you create i as a parameter that you pass using a nested function call, as described here or here.

Alan Weiss

MATLAB mathematical toolbox documentation