Hi,
I have a MIMO plant with 189 inputs, 357 states and 2 outputs. I am trying to get the fractional order plant using the FOMCOM toolbox but I have the fallowing error.
Can you you advise me?
Many thanks.
Error using lsqncommon (line 67)
The Levenberg-Marquardt algorithm does not handle bound constraints and the trust-region-reflective
algorithm requires at least as many equations as variables; aborting.
Error in lsqnonlin (line 240)
lsqncommon(funfcn,xCurrent,lb,ub,options,defaultopt,caller,…
Error in fid (line 401)
[x_opt, resNorm, res] = lsqnonlin(@(x) fracidfun(x,y,u,t,opt), …
Error in fid_ (line 60)
[a,na,b,nb,L,Gid] = fid(in_args{1:fidNumArgs-1}, op);
Error in fotfid>btnIdentify_Callback (line 291)
[a, na, b, nb, L] = fid_(fs, {optK, optL}, idd, nPoints, …
Error in gui_mainfcn (line 95)
feval(varargin{:});
Error in fotfid (line 24)
gui_mainfcn(gui_State, varargin{:});
Error in
matlab.graphics.internal.figfile.FigFile/read>@(hObject,eventdata)fotfid(‘btnIdentify_Callback’,hObject,eventdata,guidata(hObject))
Error while evaluating UIControl Callback