Randomization problem. Is it complicated?
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Hi all,
A question regarding the randomization with Matlab: I have created a script where I have 12 images and 12 sounds, combined into 24 trials. 1-1 1-2 2-1 2-2 3-3 3-4 4-3 4-4 And so on.... The script works very well and no bugs with psychtoolbox.
Any idea of how to randomise those 24 trials while avoiding 2 consecutive trials? For instance, randomise and avoid 3-4 and 4-4 or 4-3 to occur one after the other.
Looking forward for an answer :-)
Many thanks!
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Image Analyst
2015년 11월 10일
What is your criteria for making sure one pair does not occur immediately after another pair? Why is image 4 and sound 3 not allowed to come after image 3 and sound 4? They're different images and sounds - nothing is consecutive.
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Walter Roberson
2015년 11월 11일
For something like this, the easiest way is to loop, generating potential orders, exiting the loop if the order is acceptable and otherwise continuing to loop.
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