Randomization with pairwise combinations of pictures

mha2604mha2604 Community Member Qubie ✭
edited November 2018 in Custom Code

Randomization with pairwise combinations of pictures

Hi! We have 40 pictures divided into to groups (A and B ). We would like to randomly combine one picture from group A with one picture from group B until all possible combinations have occurred or until say 10 random "pairs" have occurred. Does anyone have an idea? :)

Best Answer

  • TomGTomG Raleigh, NC Wizard ✭✭✭✭✭
    Accepted Answer


    1. Create a MC question with your 400 (20x20) combinations as choices (A1B1, A1B2, ... A20B20).
    2. Add Advanced Randomization to randomly display 10 of the 400 and check "Evenly Present"
    3. Hide the question with JS: jQuery("#"+this.questionId).hide();
    4. Add a loop & merge block, and loop based off the displayed choices in your MC question with the 400 combinations.
    5. Add your image urls for A and B as loop & merge fields 2 and 3.
    6. Add your A/B MC question to the loop, pipe in loop & merge fields 2 and 3 as the choices, and randomize.


  • idamamidamam Community Member Qubie ✭

    Hi! Is it possible to prevent the same picture from showing? So that picture A1 only is displayed once, but he picture it's being showed with is random... Likewise picture B1 would only be shown once, until all the pictures have been displayed (but in a random order, and in random pairs).

    Thanks in advance

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