ml_sigmaplot

Sigma plot of error transfer functions in a given interval.

Contents

Syntax

ml_sigmaplot(sys, [], wmin, wmax, n)
ml_sigmaplot(sys, [], wmin, wmax, n, [], lspec)
ml_sigmaplot(sys, rom, wmin, wmax, n)
ml_sigmaplot(sys, rom, wmin, wmax, n, bound)
ml_sigmaplot(sys, rom, wmin, wmax, n, bound, lspec)

Description

This function can be used to plot the error
    sigma_max(G(j*w) - H(j*w))
in the interval j*[10^wmin, 10^wmax] at n points, where G is the
transfer function of the system sys and H is the transfer function
of the system rom. If no rom system is given, the plot shows the
magnitude of G.

Input

sys    - struct, containing a standard/descriptor/second-order system
rom    - struct, containing a standard/descriptor/second-order system,
         if empty only the magnitude of sys is computed
wmin   - integer, lower exponent of the interval
wmax   - integer, higher exponent of the interval
n      - positive integer, number of points for computation
bound  - nonnegative scalar, absolute error bound, which shall be
         plotted, otherwise is set empty
lspec  - character array, determining the color and line specification
         of the plot

Output

---

See Also

ml_ct_dss_lti2struct | ml_ct_ss_lti2struct