For loop to perform multiple model simulations, error avoidance through try/catch

Hi.

I'm performing the tuning of some parameters in my simulink model, by using a for loop and simulating for each set of parameters.

When the system is unstable, the simulation ends before the stop time, causing an error.

To skip the error message, I used try/catch:

...

try

out = sim("model.slx");

catch

end

...

However, one important information for me is how far the simulation progresses for each set of parameters. The try/catch block does not save the "out" variable in the presence of an error, meaning that "out.tout" is not updated for each simulation.

How can I keep running the for loop, skip errors and update the out variable?

Are there any alternatives to try/catch for my specific case?

Answer 1

[Harsh Saxena]

Hi Vita,

You can use the try/catch statement like this:

try
    out = sim("model.slx");
catch ME
    disp(ME);
    out = ME;
end

Using this you will be able to see the error message corresponding to every simulation as well as store it in out as well. I would recommend storing it like:

catch ME
    disp(ME);
    out = [out;ME];
end    

to store all the error messages and not overwrite any one of them.

Hope this helps!

[Vita Glielmi]

Thank you very much, it is exactly what I needed!