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

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.

[Muhammad umer Khan]

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

Answer 1

[Matthew]

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);