when i type " [aa,bb,cc,​dd]=linmod​('NAME',[1 0],0);" to linearise my model at point [1 0] with MATLAB,it shows me this error:

Error using dlinmod (line 196) External input specified in the Configuration Parameters dialog box on the Data Import/Export page (or as an option to SIM command) to a model containing no root level input ports

Error in linmod (line 59) [varargout{1:max(1,nargout)}] = dlinmod(model, Ts, varargin{:}, Args);

Answer 1

[Rajanya]

Hi @Dhruv Trivedi,

The error is not specific to 'linmod' but occurs because input data has been specified without any root level input ports in the simulink model.

Refer to a similar MATLAB Answers post here - https://www.mathworks.com/matlabcentral/answers/1781355-how-can-i-resolve-this-error

Hope this helps!