System Identification Toolbox

What Cannot Be Done Using the GUI

The GUI covers primarily everything you would like to do to examine data, estimate models, and evaluate and compare models. It does not cover

• Generation (simulation) of data sets
• Model creation (other than by estimation)
• Model manipulation and conversion
• Recursive (online) estimation algorithms

To see what M-files are available in the toolbox for these functions, see The Toolbox Commands, as well as Simulation and Prediction, Model Structure Creation, Manipulating Model Structures, Model Conversions, and Recursive Parameter Estimation.

Note that at any point you can export a data set or a model to the MATLAB workspace (by dragging and dropping its icon on the To Workspace icon). There you can modify and manipulate it any way you want and then import it back into ident. You can, for example, construct a continuous-time model from an estimated discrete-time one (using d2c), and then use the model views to compare the two.

Customized Plots

Tutorial