Can I pass fitobject as a variable to a function

I have curve fit my data using the fit command as given below

[cfit,gof,output] = fit(x,y,fitType)

Now my fitobject is in cfit.

Can I pass this fit object (cfit) as a variable to a function for using the lsqnonlin optimization function

X=___;
Y=___;
[cfit,gof,output] = fit(x,y,fitType) 
P0=[  ];%Initial estimation
a=__;%variable
b=__;%variable
lb=[_,...,_];%Lower bound
ub=[_,...,_];%Upper bound
[Widths,resnorm,res,eflag,output1] = lsqnonlin(@(P) function(P,a,b,cfit), P0, lb, ub,options);


%%Function definition
[  ]=function(r,a,b,cfit)
{
fit_result=cfit(r); %for finding the values using fitobject
}
end

Please suggest me know if there is any possiblity for doing this

Answer 1

[Kavya Vuriti]

Hi,

It is possible to pass cfit object directly to lsqnonlin function.

[Widths,resnorm,res,eflag,output1] = lsqnonlin(cfit, P0, lb, ub,options); 

[Vinay Killamsetty]

Thank you very much