Plot Hankel singular values and return plot handle
h = hsvplot(___)
hsvplot(sys) plots the Hankel singular values (HSVs) of the LTI
balred for details on the meaning and purpose of Hankel singular values.
The Hankel singular values for the stable and unstable modes of
are shown in blue and red, respectively. Reduced-order models of various orders can be
obtained by dropping the states associated with the smallest HSVs.
hsvplot also shows the maximum approximation error as a function
of the approximation order (number of states in reduced-order model).
hsvplot(AX,sys,...) attaches the plot to the axes
h = hsvplot(___) returns the plot handle
to the Hankel singular value plot. You can use this handle to customize the plot with
setoptions commands. See
hsvoptions for a list of some available
hsvplot to create a Hankel singular-value plot with and customized plot properties.
Create an options set for
hsvplot that sets the
Yscale property and the title font size.
P = hsvoptions; P.YScale = 'linear'; P.Title.FontSize = 14;
Use the options set to generate an HSV plot. Note the linear y-axis scale in the plot.
h = hsvplot(rss(12),P);
hsvplot returns a plot handle. You can use the plot handle to change properties of the existing plot. For example, switch to log scale and turn off the grid.
hsvplot generate Hankel singular-value plots.
hsvplot is useful when you want to customize properties
of your plot such as axis limits, scale, and label styles. Use
hsvplot to define properties for your plot. For
information on the ways to change properties of your plots, see Ways to Customize Plots.