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:

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Dhruv Trivedi
Dhruv Trivedi 2018-9-24
回答： Rajanya 2025-4-14
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);

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回答（1 个）

Rajanya
Rajanya 2025-4-14
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!

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