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Response Computation and Visualization

Analyze model response on time- and frequency-response plots

Functions

simSimulate response of identified model
bodeBode plot of frequency response, or magnitude and phase data
bodeplotPlot Bode frequency response with additional plot customization options
bodemag Magnitude-only Bode plot of frequency response
stepStep response of dynamic system
stepplotPlot step response with additional plot customization options
stepinfoRise time, settling time, and other step-response characteristics
nyquistNyquist plot of frequency response
nyquistplotNyquist plot with additional plot customization options
impulseImpulse response plot of dynamic system; impulse response data
impulseplotPlot impulse response with additional plot customization options
pzmapPole-zero plot of dynamic system
pzplotPole-zero plot of dynamic system model with additional plot customization options
iopzmapPlot pole-zero map for I/O pairs of model
iopzplotPlot pole-zero map for I/O pairs with additional plot customization options
spectrumPlot or return output power spectrum of time series model or disturbance spectrum of linear input/output model
spectrumplotPlot disturbance spectrum of linear identified models
lsimPlot simulated time response of dynamic system to arbitrary inputs; simulated response data
lsimplotPlot simulated time response of dynamic system to arbitrary inputs with additional plot customization options
lsiminfoCompute linear response characteristics
showConfidenceDisplay confidence regions on response plots for identified models
findstatesEstimate initial states of model
data2stateMap past data to states of state-space and nonlinear ARX models
simOptionsOption set for sim
RespConfigOptions for step or impulse responses (Since R2023a)
bodeoptionsCreate list of Bode plot options
nyquistoptionsCreate list of Nyquist plot options
timeoptionsCreate list of time plot options
getoptionsReturn plot options handle or plot options property
setoptionsSet plot options handle or plot options property
pzoptionsCreate list of pole/zero plot options
spectrumoptionsOption set for spectrumplot
identprefSet System Identification Toolbox preferences
findstatesOptionsOption set for findstates

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