How to replace exp.set in OS4?

Comments

• cvanbuck

  February 21

  Hi @Antje,

  In OpenSesame 4.0, exp.set() is no longer needed because variables are handled differently. Instead, you should use var to store them properly, like this:

  var.sound_1 = examples_y[0]

  var.sound_2 = examples_y[1]

  var.sound_3 = examples_y[2]

  This should work the same way, and OpenSesame should correctly track the variables throughout the experiment.

  Let me know if you run into any issues.

  Claire

  Check out SigmundAI.eu for our OpenSesame AI assistant! 🤖
• Antje

  February 26

  Dear @cvanbuck ,

  Thank you so much, it works. However, there is another problem now. After a couple of trials, the experiment crashes and I get the following error:

  Error: ExperimentProcessDied

  The experiment process seems to have died as the result of an unknown problem. This should not happen! This error occurred in the unknown phase of item unknown.

  Would you have any idea how to address this? Given that the error is so unspecific, I'm attaching my script here. I hope that's ok.

  Best wishes,

  
  

  Antje

  This is an embed external element. It can be deleted using the delete key or the backspace key. To view the full element, press the preview button below.

  ApSon_Exposure_oe-ortho_V3.osexp

  847.75 KB

  
  
• cvanbuck

  February 27

  Hi @Antje,

  Glad to hear it worked!

  Regarding your new issue, I couldn't reproduce the exact same error, but the experiment did crash for me after a few trials (18, to be precise).

  Switching the backend from legacy to expyriment solved the issue on my end—could you try that and see if it works for you as well?

  Let me know how it goes!

  Claire

  Check out SigmundAI.eu for our OpenSesame AI assistant! 🤖
• Antje

  February 27

  Dear @cvanbuck,

  Thank you so much for checking. I also tried changing the backends. With xpyriment, it also crashes (but slightly later, always after 98 trials), and with psycho, it does not work at all.

  Any ideas what might be causing this?

  Thank you so much,

  
  

  Antje
• sebastiaan

  March 3

  @Bob To me this sounds like it could be a memory issue with the low-latency plugins. Any ideas?

  
  
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• Antje

  March 4

  Dear @sebastiaan ,

  In case it helps, I would like to add that we did not experience this problem in OpenSesame 3.9.

  Thank you so much,

  Antje