randomization: show one picture only once in a loop

Comments

• rrr

  February 2017

  Hi,

  Have you tried to make the design without using full factorial design?
  See also http://osdoc.cogsci.nl/3.1/manual/structure/loop/.
• Josh

  February 2017

  Hi, how is it that pictures are repeatedly shown? What does "list out all the possibilities" look like exactly? I would think your loop item should show just one variable, with two values positive and negative, cycled 25 times.

  Cheers,

  Josh
• hiiiiiii

  February 2017

  Hi, thank you for the quick response! I basically follow the beginner tutorial to randomize
  This is what the loop's split view looks like:
  set repeat 0.04
  set order random
  set description "Repeatedly runs another item"
  set cycles 625
  set continuous no
  set break_if_on_first yes
  set break_if never
  setcycle 0 n 1
  setcycle 0 nn 1
  setcycle 1 n 2
  setcycle 1 nn 1
  setcycle 2 n 3
  setcycle 2 nn 1
  setcycle 3 n 4
  setcycle 3 nn 1
  setcycle 4 n 5
  setcycle 4 nn 1
  setcycle 5 n 6
  setcycle 5 nn 1
  setcycle 6 n 7
  setcycle 6 nn 1
  setcycle 7 n 8
  setcycle 7 nn 1
  setcycle 8 n 9
  setcycle 8 nn 1
  setcycle 9 n 10
  setcycle 9 nn 1
  setcycle 10 n 11
  setcycle 10 nn 1
  setcycle 11 n 12
  setcycle 11 nn 1
  setcycle 12 n 13
  setcycle 12 nn 1
  setcycle 13 n 14
  setcycle 13 nn 1
  setcycle 14 n 15
  setcycle 14 nn 1
  setcycle 15 n 16
  setcycle 15 nn 1
  setcycle 16 n 17
  setcycle 16 nn 1
  setcycle 17 n 18
  setcycle 17 nn 1
  setcycle 18 n 19
  setcycle 18 nn 1
  setcycle 19 n 20
  setcycle 19 nn 1
  setcycle 20 n 21
  setcycle 20 nn 1
• hiiiiiii

  February 2017

  And this is what the next console's split view looks like:
  set duration 0
  set description "Displays stimuli"
  draw image center=1 file="n[n].png" scale=0.4 show_if=always x=0 y=0 z_index=0
• hiiiiiii

  February 2017

  There is another console: (randomize nn)
  set duration 0
  set description "Displays stimuli"
  draw image center=1 file="nn[nn].png" scale=0.4 show_if=always x=0 y=0 z_index=0
• hiiiiiii

  February 2017

  I want to show each n/nn only once but in a randomize fashion, if I just write 1-25 on the loop variable, it will run in sequence. How do I shuffle?
• hiiiiiii

  February 2017

  Oh, I'm sorry. I shouldn't use full factorial design. It will randomize automatically.
  I'm inexperienced with open sesame. Sorry for the question, and thank you for your help!