Could I ask why my javascript code is not working?

Question

Hi all, I tried to use javascript code below but the profiles do not show up. May I ask for you help on why it is not working? Thanks! Qualtrics.SurveyEngine.addOnload(function(){// Code to randomly generate conjoint profiles in a Qualtrics survey// Terminology clarification: // Task = Set of choices presented to respondent in a single screen (i.e. pair of candidates)// Profile = Single list of attributes in a given task (i.e. candidate)// Attribute = Category characterized by a set of levels (i.e. education level)// Level = Value that an attribute can take in a particular choice task (i.e. "no formal education")// Attributes and Levels stored in a 2-dimensional Array /* Randomize array in-place using Durstenfeld shuffle algorithm */function shuffleArray(array) { for (var i = array.length - 1; i > 0; i--) { var j = Math.floor(Math.random() * (i + 1)); var temp = array[i]; array[i] = array[j]; array[j] = temp; } return(array);}// Function to generate weighted random numbersfunction weighted_randomize(prob_array, at_key){ var prob_list = prob_array[at_key]; // Create an array containing cutpoints for randomization var cumul_prob = new Array(prob_list.length); var cumulative = 0.0; for (var i=0; i < prob_list.length; i++){ cumul_prob[i] = cumulative; cumulative = cumulative + parseFloat(prob_list[i]); } // Generate a uniform random floating point value between 0.0 and 1.0 var unif_rand = Math.random(); // Figure out which integer should be returned var outInt = 0; for (var k = 0; k < cumul_prob.length; k++){ if (cumul_prob[k] <= unif_rand){ outInt = k + 1; } } return(outInt);} var featurearray = {"Gender" : ["male","female"],"Major" : ["Close","Far"]};var restrictionarray = [];var probabilityarray = {};// Indicator for whether weighted randomization should be enabled or notvar weighted = 0;// K = Number of tasks displayed to the respondentvar K = 2;// N = Number of profiles displayed in each taskvar N = 2;// num_attributes = Number of Attributes in the Arrayvar num_attributes = featurearray.length;// Should duplicate profiles be rejected?var noDuplicateProfiles = true;// Place the $featurearray keys into a new arrayvar featureArrayKeys = Object.keys(featurearray);var featureArrayNew = featurearray;// Initialize the array returned to the user// Naming Convention// Level Name: F-[task number]-[profile number]-[attribute number]// Attribute Name: F-[task number]-[attribute number]// Example: F-1-3-2, Returns the level corresponding to Task 1, Profile 3, Attribute 2 // F-3-3, Returns the attribute name corresponding to Task 3, Attribute 3var returnarray = {};// For each task $pfor(var p = 1; p <= K; p++){ // For each profile $i for(var i = 1; i <= N; i++){ // Repeat until non-restricted profile generated var complete = false; while (complete == false){ // Create a count for $attributes to be incremented in the next loop var attr = 0; // Create a dictionary to hold profile's attributes var profile_dict = {}; // For each attribute $attribute and level array $levels in task $p for(var q = 0; q < featureArrayKeys.length; q++){ // Get Attribute name var attr_name = featureArrayKeys[q]; // Increment attribute count attr = attr + 1; // Create key for attribute name var attr_key = "F-" + p + "-" + attr; // Store attribute name in returnarray returnarray[attr_key] = attr_name; // Get length of levels array var num_levels = featureArrayNew[attr_name].length; // Randomly select one of the level indices if (weighted == 1){ var level_index = weighted_randomize(probabilityarray, attr_name) - 1; }else{ var level_index = Math.floor(Math.random() * num_levels); } // Pull out the selected level var chosen_level = featureArrayNew[attr_name][level_index]; // Store selected level in profileDict profile_dict[attr_name] = chosen_level; // Create key for level in $returnarray var level_key = "F-" + p + "-" + i + "-" + attr; // Store selected level in $returnarray returnarray[level_key] = chosen_level; } var clear = true; // Cycle through restrictions to confirm/reject profile if (restrictionarray.length != 0){ for (var v = 0; v < restrictionarray.length; v++){ var falsevar = 1; for (var mp = 0; mp < restrictionarray[v].length; mp++){ if (profile_dict[restrictionarray[v][mp][0]] == restrictionarray[v][mp][1]){ falsevar = falsevar*1; }else{ falsevar = falsevar*0; } } if (falsevar == 1){ clear = false; } } } // If we're throwing out duplicates if (noDuplicateProfiles == true){ // Cycle through all previous profiles to confirm no identical profiles if (i > 1){ // For each previous profile for(var z = 1; z < i; z++){ // Start by assuming it's the same var identical = true; // Create a count for $attributes to be incremented in the next loop var attrTemp = 0; // For each attribute $attribute and level array $levels in task $p for(var qz = 0; qz < featureArrayKeys.length; qz++){ // Increment attribute count attrTemp = attrTemp + 1; // Create keys var level_key_profile = "F-" + p + "-" + i + "-" + attrTemp; var level_key_check = "F-" + p + "-" + z + "-" + attrTemp; // If attributes are different, declare not identical if (returnarray[level_key_profile] != returnarray[level_key_check]){ identical = false; } } // If we detect an identical profile, reject if (identical == true){ clear = false; } } } } complete = clear; } }} // Write returnarray to Qualtricsvar returnarrayKeys = Object.keys(returnarray);for (var pr = 0; pr < returnarrayKeys.length; pr++){ Qualtrics.SurveyEngine.setEmbeddedData(returnarrayKeys[pr], returnarray[returnarrayKeys[pr]]); }});Qualtrics.SurveyEngine.addOnReady(function(){ /*Place your JavaScript here to run when the page is fully displayed*/});Qualtrics.SurveyEngine.addOnUnload(function(){ /*Place your JavaScript here to run when the page is unloaded*/});

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