Change fmincon from local to global search

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Benjamin
Benjamin 2021-3-11
评论： Benjamin 2021-3-11
Hello
Dear all experts,
I have a code that uses fmincon to minimize a parameter (i.e. alpha), however, the program does not try different values for alpha, and show the initial adopted value as the output. I read in another topic that finding a global search, rather than a local minimum search could solve this problem. But I don't know how to change the fmincon to search for the global answers. I also used the approach here, but it doesn't work. I attached my code files, and I really appreciate it if you help me.
Thanks
  2 个评论
Jan
Jan 2021-3-11
fmioncon is a local optimizer. You cannot convert it to a global one, because this is a completely different approach. you cannot change your bike to act like a typing machine also.
I also used the approach here, but it doesn't work.
Then please post your code and explain, what "does not work" mean. We cannot guess this important detail. Using a global optimizer is the correct way, so lets solve the occurring problems.

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Benjamin
Benjamin 2021-3-11
I changed the code to implement lsqcurvefit instead of fmincon and I was able to fix the problem. That means in my problem I did not need to search for a global search. Here I put the modified files just in case someone got into the same problem as me, and hopefully that helps.

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