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?

1 个评论

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

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回答(1 个)

Shubham
Shubham 2024-8-5
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

8 个评论

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
To me it sounds as if @Shubham misunderstood your problem. But I might be wrong.
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.
So it's impossible to irreversably modify Simulink example files as @Roger Kaplan claimed to have done ? Modifications are always done to a copy ?
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.
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
Thanks for your suggestions, but I already altered the conditions by reinstalling the toolbox. I'll try what you suggest next time.
Hi @Shubham, it worked, my examples were restored to default. Thank you.

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