Parametric Models

The Parametric Models dialog is opened by chosing the corresponding item in the pop-up menu Estimate in the ident window.

The dialog box gives access to all parametric modeling in the toolbox and operates on the Working Data set in the main ident window.

Usage:First, choose a model structure using the pop-up menu. Then enter the orders of the model in the Orders: edit box, and hit the Return key. Possibly change the default Model name. Finally press the Estimate button to perform the estimation and enter the resulting model into the Model board.

The model structures supported by the dialog include:

ARMAX, OE, BJ
  Covers a wide family of noise models for single output systems.
By Initial Model
  Uses an arbitrary model structure created by previous estimation or by special Toolbox commands.

More... about the Parametric Models dialog.

Help topics.

More on the Parametric Models Dialog

Order editor...
  Opens a dialog box that allows easy definition of the chosen model structure. Also provides detailed help about the various model structures.
Order selection
  The order selection feature is available for state-space models, estimatedusing N4SID, and for single-output ARX models using the ARX option. Pushing this button fills out the Order field with default order ranges. Then push Estimate, and a special plot will open where models of different orders can be selected by clicking.
Help topics.

(file idparest.htm)