Optimize model parameter values to achieve model best fit to the input data

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Muhammad umer Khan 2024-4-8

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回答： Matthew 2024-4-8

Hi,

I am trying to define optimoptions in the 'fit' function, but it is giving me an error. I followed the optimoptions link given on this documentation

https://www.mathworks.com/help/vdynblks/ug/tiremodel.fit.html

options = optimoptions(@fmincon,'Algorithm','interior-point','Display','off');

[tm,diffTable,errorStat,optimOutput] = tm.fit(longitudinal_data,"Fx Pure",Solver="fmincon",options,PlotFit=true);

The error is Unsupported use of the '=' operator. To compare values for equality, use '=='. To pass name-value arguments using the name=value format, provide these arguments after all other inputs.

Any help would be appreciated. Thanks.

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Muhammad umer Khan 2024-4-8

can you please identify the mistake explicitly or refer me to any example? Thanks in advance.

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Answer 1

Matthew 2024-4-8

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Hi Muhammad,

You neglected to include the input argument name for "optimoptions" in your function call. Use it to assign your options object.

options = optimoptions(@fmincon,'Algorithm','interior-point','Display','off');
[tm,diffTable,errorStat,optimOutput] = tm.fit(longitudinal_data,"Fx Pure",Solver="fmincon",optimoptions=options,PlotFit=true);