How to restore example to default

I opened a Simulink example file and made modifications before thinking of making a working copy. Now I can't get back to the original. How can I download it again from Mathworks?

[Torsten]

Can't you reinstall the Simulink examples folder ? If not, I'd reinstall complete MATLAB.

Answer 1

[Shubham]

Hi Roger,

It is my understanding that you want to restore your Simulink example to default state. You can do so by following these steps:

1. Open your modified Simulink example.
2. Search for its location in your system by using 'which example_model_name' command.
3. Go to the location and delete/move the Simulink example to some other location as per your requirement.
4. Again, open the example using 'openExample(example_name)' command.

This will open the default Simulink example.

Hope it helps.

Regards,

Shubham

[Roger Kaplan]

I'm not sure if the above procedure would have worked, unless it causes Matlab to download the example again from the server. Instead, I uninstalled and reinstalled the toolbox. I would have preferred a mechanism to just update the examples. Maybe what you suggest does that automatically?

Thanks,

Roger Kaplan

[Torsten]

To me it sounds as if @Shubham misunderstood your problem. But I might be wrong.

[Walter Roberson]

When you openExample(), MATLAB makes a copy of internal files (including unpacking internal archives) and drops the result into a user directory. The source files are left intact. If you remove the directory that the files were unpacked into, then the next time you openExample(), the files will be unpacked again.

[Torsten]

So it's impossible to irreversably modify Simulink example files as @Roger Kaplan claimed to have done ? Modifications are always done to a copy ?

[Walter Roberson]

You would have to have dug around and found the master version and modified that. Not impossible, but unlikely.

The master versions of files are mostly stored in numbered files, and then for each example there is a manifest that says which files are to be extracted and what name they are to be given. This is done because there is a fair bit of overlap of files between examples, shared infrastructure.

[Shubham]

Hi @Roger Kaplan, It worked on my end and I was able to restore my examples to default state. Can you try implementing the solution to see if it works for you.

If you have any queries, feel free to comment

[Roger Kaplan]

Thanks for your suggestions, but I already altered the conditions by reinstalling the toolbox. I'll try what you suggest next time.