www.gusucode.com > ident 案例代码 matlab源码程序 > ident/CompareIdentifiedNonparametricandParametricModelsExample.m
%% Compare Identified Nonparametric and Parametric Models % Identify parametric and nonparametric models for a data set, and compare % their step response. % Copyright 2015 The MathWorks, Inc. %% % Identify the impulse response model (nonparametric) and state-space model % (parametric), based on a data set. load iddata1 z1; sys1 = impulseest(z1); sys2 = ssest(z1,4); %% % |sys1| is a discrete-time identified transfer function model. |sys2| is a % continuous-time identified state-space model. %% % Compare the step response for |sys1| and |sys2|. step(sys1,'b',sys2,'r'); legend('impulse response model','state-space model');