Set plot options for response plot


setoptions(h, PlotOpts)
setoptions(h, 'Property1', 'value1', ...)
setoptions(h, PlotOpts, 'Property1', 'value1', ...)


setoptions(h, PlotOpts) sets preferences for response plot using the plot handle. h is the plot handle, PlotOpts is a plot options handle containing information about plot options.

There are two ways to create a plot options handle:

  • Use getoptions, which accepts a plot handle and returns a plot options handle.

    p = getoptions(h)
  • Create a default plot options handle using one of the following commands:

    • bodeoptions — Bode plots

    • hsvoptions — Hankel singular values plots

    • nicholsoptions — Nichols plots

    • nyquistoptions — Nyquist plots

    • pzoptions — Pole/zero plots

    • sigmaoptions — Sigma plots

    • timeoptions — Time plots (step, initial, impulse, etc.)

    For example,

    p = bodeoptions

    returns a plot options handle for Bode plots.

setoptions(h, 'Property1', 'value1', ...) assigns values to property pairs instead of using PlotOpts. To find out what properties and values are available for a particular plot, type help <function>options. For example, for Bode plots type

help bodeoptions

For a list of the properties and values available for each plot type, see Properties and Values Reference (Control System Toolbox).

setoptions(h, PlotOpts, 'Property1', 'value1', ...) first assigns plot properties as defined in @PlotOptions, and then overrides any properties governed by the specified property/value pairs.


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Create the following continuous-time transfer function:


sys = tf(1,[1 1]);

Create a Bode plot with plot handle h.

h = bodeplot(sys);

Create a plot options handle p.

p = getoptions(h);

Change frequency units of the plot to Hz.

p.FreqUnits = 'Hz';

Apply the plot options to the Bode plot.


Alternatively, use setoptions(h,'FrequencyUnits','Hz').

See Also

Introduced in R2012a