Plot pole-zero map for I/O pairs of model
iopzmap(sys) computes and plots the poles
and zeros of each input/output pair of the dynamic system model
The poles are plotted as x's and the zeros are plotted as o's.
iopzmap(sys1,sys2,...) shows the poles
and zeros of multiple models
on a single plot. You can specify distinctive colors for each model,
For model arrays,
iopzmap plots the poles
and zeros of each model in the array on the same diagram.
Create a one-input, two-output dynamic system.
H = [tf(-5 ,[1 -1]); tf([1 -5 6],[1 1 0])];
Plot a pole-zero map.
iopzmap generates a separate map for each I/O pair in the system.
View the poles and zeros of an over-parameterized state-space model estimated from input-output data. (Requires System Identification Toolbox™).
load iddata1 sys = ssest(z1,6,ssestOptions('focus','simulation')); iopzmap(sys)
The plot shows that there are two pole-zero pairs that almost overlap, which hints are their potential redundancy.
For additional options for customizing the appearance of the
pole-zero plot, use