Alternately select randomly from two separate lists of items

neon

Hi Everyone,

Can anyone think of a relatively straightforward way I can make a random selection from one distinct list, followed by a random selection from another distinct list, then repeat this (without replacement), until all the list items have been selected?

So, for example, I might have a list of five animals, and a list of five colours. I want to select an animal at random from the animal list, then a colour at random from the colour list and so on. So I would end up with a collection of 10 things, in the order animal, colour, animal, colour... The important thing is that the selection is 'random' from both lists - i.e. "blue" doesn't always follow "dog" etc.

I am hoping for a clever tweak using the GUI, but if I have to descend in to a complicated inline-script, and fiddling with the data matrix, then so be it. I can just see myself spending hours debugging a script, then someone telling me it can be done in 10 seconds with the GUI

Thanks in advance for any advice,

Neon

Jarik

Hi Neon,

Thank for your detailed and clear question.

I think putting both animals and colours in a separate column of the same loop item and then doing a shuffle on one of them, should do the job.

http://osdoc.cogsci.nl/3.1/manual/structure/loop/#advanced-loop-operations

Best,
Jarik

neon

Hi Jarik,

Exactly the solution I was looking for - Thank you very much for your super-quick help!

Best wishes,

Neon