Commands for Model Estimation

The following table summarizes System Identification Toolbox™ estimation commands. For detailed information about using each command, see the corresponding reference page.

Commands for Constructing and Estimating Models

Model TypeEstimation Commands
Transfer function modelstfest
Process models (low order transfer functions expressed in time-constant form)procest

Linear input-output polynomial models

armax (ARMAX and ARIMAX models)
arx (ARX and ARIX models)
bj (BJ only)
iv4 (ARX only)
oe (OE only)
polyest (for all models)
State-space modelsn4sid
ssest
Linear time-series modelsar
arx (for multiple outputs)
ivar
Nonlinear ARX modelsnlarx
Hammerstein-Wiener modelsnlhw

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