Does the 'sigmaplot' function plot the minimum or the maximum singular values of a MIMO transfer function?

I am using the 'sigmaplot' function to plot the singular values of my controller function which has 2 inputs and 1 output. The figure is shown below:

I want to know which singular values does the 'sigmaplot' function plot? Minimum or maximum?

Answer 1

[Paul]

I think it plots all of the singular values that are not identically zero, unless the MagUnits property is set to 'abs', in which case it plots all of the singular values.