How to do Monte Carlo simulation with Stateflow

Hello,

I wanted to know if it was possible to do stochastic simulation with monte carlo method in Stateflow?

Thanks

Answer 1

[Altaïr]

Hey @Olivier NEYRET,

Monte Carlo simulations can be performed using Stateflow charts integrated with Simulink and MATLAB. Below is a simple implementation example where a Stateflow chart accepts the output's initial value as its input and generates a step signal with a step size of 1.

In this configuration:

• A Constant block supplies the Stateflow chart input, sourcing values from workspace variable x_const
• The chart output routes to the base workspace via a To Workspace block

Following model setup, simulations can be executed from MATLAB using this script:

figure
for x_const = 1:10
    simOut = sim('modelName.slx');
    plot(simOut.y,'DisplayName',"Input = "+num2str(x_const))
    hold on
end
hold off

The resulting figure demonstrates Monte Carlo simulation outputs:

For additional guidance on running multiple Simulink simulations, kindly access the doc page using this command:

web(fullfile(docroot, 'simulink/ug/run-multiple-simulations.html'))