plot the final value of optimization

Question

Soumili Sen 2020-12-24

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https://ww2.mathworks.cn/matlabcentral/answers/701627-plot-the-final-value-of-optimization

评论： Soumili Sen 2020-12-24

采纳的回答： Alan Weiss

Hello all,

I am facing a logical problem like,

N =10;

syms a,b

for i = 1:N

y(i)=2*a+3;

x(i)=4*b+9;

fun(i) = mean((y(i)-x(i))^2);

end

data=sum(fun);

after optimization we get values of a,b and value of data properly ,but now I want to plot data. But here data is a single value. How i can proceed it?

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Answer 1

Alan Weiss 2020-12-24

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https://ww2.mathworks.cn/matlabcentral/answers/701627-plot-the-final-value-of-optimization#answer_583687

It seems that your data is x(i) and y(i), and the associated 2*a+3 and 4*b+9. Yeah, they are all constants, nothing much to plot other than a single point, because your x and y values do not depend on i.

In addition, you probably should not thnik in terms of symbolic variables. If you want to optimize something numerically, use regular numerics, or else the Optimization Toolbox problem-based approach.

Alan Weiss

MATLAB mathematical toolbox documentation