Simulink Control Design™ - MathWorks

For example, the Watertank model has three parameters defined as MATLAB workspace
variables, a, b, and A. The following commands specify a parameter grid for the single
parameter for A.

param.Name = 'A';
param.Value = Avals;

Here, Avals is an array specifying the sample values for A.

The following table lists some common ways of specifying parameter samples.

Parameter Sample-Space Type How to Specify the Parameter Samples

Linearly varying param.Value =

linspace(A_min,A_max,num_samples)

Logarithmically varying param.Value =

logspace(A_min,A_max,num_samples)

Random param.Value = rand(1,num_samples)

Custom param.Value = custom_vector

If the variable used by the model is not a scalar variable, specify the parameter name as
an expression that resolves to a numeric scalar value. For example, suppose that Kpid is
a vector of PID gains. The first entry in that vector, Kpid, is used as a gain value in a
block in your model. Use the following commands to vary that gain using the values given
in a vector Kpvals:

param.Name = 'Kpid(1)';
param.Value = Kpvals;

After you create the structure param:

• Pass it to linearize as the param input argument.


• Pass it to slLinearizer as the param input argument, when creating an
  slLinearizer interface.


• Set the Parameters property of an existing slLinearizer interface to param.

Vary Single Parameter in Graphical Tools

To specify variations of a single parameter for batch linearization in Linear Analysis Tool,
in the Linear Analysis tab, in the Parameter Variations drop-down list, click Select

Specify Parameter Samples for Batch Linearization