Help with converting inline python to java

Comments

• lvanderlinden

  February 2021

  Hi @Skilli ,

  
  

  I think something like the following should work:

  
  

  In an inline_javascript item at the beginning of your experiment, define a shuffle function:

  // Create a shuffle function:
  // See e.g. https://javascript.info/task/shuffle
  function Shuffle(a) {
  
      // a --- an array
      
  	for(var j, x, i = a.length; i; j = 
      parseInt(Math.random() * i), x = a[--i], a[i] = a[j], a[j] = x);
  	
      // return shuffled arrray
      return a;
  };
  

  
  

  At the beginning of your trial sequence, append another inline_javascript item to shuffle the list and define the distractors:

  
  

  // Define the list as a JavaScript Array:
  // Unshuffled:
  var distractor_list = ["B", "C", "D", "E", "F", "G"]
  
  // Shuffled:
  var distractor_list = Shuffle(distractor_list)
  
  // Pop the last n items (here, 3) from the list and store
  // them in the vars object (so that they can be used in
  // the GUI (e.g. a sketchpad) via the square-bracket syntax:
  vars.distractor1 = distractor_list.pop()
  vars.distractor2 = distractor_list.pop()
  vars.distractor3 = distractor_list.pop()
  

  
  

  See the attached script for an example.

  
  

  Hope this helps!

  
  

  Cheers,

  
  

  Lotje

  6854.osexp

  
  

  Did you like my answer? Feel free to
• Skilli

  February 2021

  Hi @lvanderlinden .,

  
  

  I have added the code ot my study and it works. However, I get an error when runnign it in the web browser.

  
  

  ReferenceError: Shuffle is not defined

  
  

  Deiniol
• eduard

  February 2021

  Hi Deiniol,

  I think javascript_inlines' workspace is not global. That means that whatever you do in one inline_script item will only be defined in that item. You would have to define the Shuffle function in every inline_script item that you are using. See here (4. bullet point): https://osdoc.cogsci.nl/3.3/manual/osweb/javascript/

  Does that solve your problem?

  Side question, is there a reason you are not using the "standard" version of the AX-CPT with only A, X, B, Y? With that implementation your live would probably be much easier.

  Eduard

  
• Skilli

  February 2021

  @eduard

  
  

  Thanks works brilliantly. I only have one inline script so that works great.

  
  

  Most of the AXCPT experiements that I have read about use letters A and X but then randomly allocate letters to B and Y. Some have a pool of items for context B and a seperate pool of items for target Y.

  
  

  I have made previous versions in e-prime using nested lists.

  
  

  many thanks

  
  

  Deiniol