Hey there, I am presenting 6 images simultaneously. I somehow successfully randomized the order of images but it gues a bit controlled way; certain combinations are appearing in a randomized way but they are never randomized with the rest of the stims. First, I defined all combinations in my condi…

You are shuffling the x and y coordinates separately. How about # Begin Experiment sides = [[-.43,-.3],[-.43, .3],[0, ,-.3],[0, .3],[.43, -.3],[.43, -.3]] # Begin Routine shuffle(sides) # Image properties, set every repeat (sides[0][0], sides[0][1]) (sides[1][0], sides[1][1]) etc.

Have a look at my independent randomisation demo. [image] PsychoPy Online Demos Blog If you have routines or experiments that are likely to be useful to others, please create a post in this thread, editing your post to add new demos so there is one post per creator. Ideal…

Hi, When I tried the procedure below, some of the items overlapped Begin Exp: sidesX = [-.43, 0, .43, -.43, 0, .43] #I repeated the numbers because when I include 3 of them, all items were overlapping. sidesY=[-.3,.3,-.3,.3, -.3,.3] Begin Routine: shuffle(sidesX) shuffle(sidesY) Image properti…

(sides[0][0], sides[0][1]) (sides[1][0], sides[1][1]) (sides[0][0], sides[1][0]) (sides[0][1], sides[1][1]) (sides[1][1], sides[1][0]) (sides[0][1], sides[0][0]) sorry, I could not understand the logic.

The coordinates of the ith position is: (sides[i][0], sides[i][1]) So all of your horizontal coordinates should be sides[item number][0]

Hi, I am trying to replicate this solution for my task, I have 6 images and in my case I only want to change the X position (horizontal change, Y fixed to 0). At the begin Exp: sides = [-.5,-.3,-.1,.1,.3,.5] Begin Routine shuffle(sides) Each image has image 1 position (sides[0],0), image 2 pos…

You only have 6 positions numbered 0 to 5

Totally right, very stupid, thanks a lot @wakecarter !

Randomizing position of stim

Coding

wakecarter December 13, 2021, 10:48pm 2

Have a look at my independent randomisation demo.

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Randomizing position of stim

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