Set parameterlimits while fitting with fminsearch

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Venja Schoenke 2019-10-21

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评论： Matt J 2019-10-22

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Hello, I have a function with which I have estimated the parameters for two linked differential equations. I minimize with fminsearch the quadratic errors between original data and function data. However, I have now extended/changed my differential equation, so that the fit spits out no more justifiable values. Therefore, I would like to know if there is a possibility to determine an area in which the parameter must be located. I hope someone knows a solution

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Matt J 2019-10-21

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编辑：Matt J 2019-10-21

Here is a fairly popular version of fminsearch that lets you apply constraints

https://www.mathworks.com/matlabcentral/fileexchange/8277-fminsearchbnd-fminsearchcon

I haven't had the occasion to use it myself, though.

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Venja Schoenke 2019-10-22

thank you, that helped a lot

Matt J 2019-10-22

You're welcome, but please Accept-click the answer if you consider your question resolved.

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