class Study {
  String name, gender, obj, unit, noun, relation;
  float muo, sd, mean;
  int digit, samplesize, k, known;

  // Constructor
  Study() {
    // Person
    String[] names = {
      "Neo", "Jake", "Mr. Anderson", "Lisa Simpson", "Bart Simpson", "Homer Simpson", "Ted Mosby", "Robin Scherbatsky", "Roger", "Rachel", "Carol", "Samantha", "Nathan", "Morpheus"
    };
    String[] genders = {
      "he", "he", "he", "she", "he", "he", "he", "she", "he", "she", "she", "she", "he", "he"
    };

    int i = int(random(names.length));
    name = names[i];
    gender = genders[i];

    // Object
    String[] objs = {
      "male height", "female height", "male weight", "female weight", "cat length", "male salary", "cat speed", "dog weight"
    };
    String[] units = {
      "ft", "ft", "pounds", "pounds", "inches", "dollars", "mi/hr", "pounds"
    };
    String[] nouns = {
      "males", "females", "males", "females", "cats", "males", "cats", "dogs"
    };
    int[] digits = {
      1, 1, 3, 3, 2, 5, 2, 2
    };

    i = int(random(objs.length));
    obj = objs[i];
    unit = units[i];
    noun = nouns[i];
    digit = digits[i];

    // Limit
    float[] lowers = {    
      5.5, 5, 150, 100, 15, 40000, 20, 40
    };
    float[] uppers = {
      6.5, 6, 200, 150, 20, 60000, 30, 70
    };
    float lower = lowers[i];
    float upper = uppers[i];

    // Sample size
    int[] samplesizes = {
      10, 20, 50, 100, 1000
    };
    samplesize = samplesizes[int(random(samplesizes.length))];

    // Relation and Known Variance
    String[] relations= {
      "greater than", "less than", "different from"
    };
    k = int(random(relations.length));
    relation = relations[k];

    known = int(random(2));

    // Data
    muo = random(lower, upper);
    sd = random(lower/10, upper/10);
    muo = float(int(muo*100))/100;
    sd = float(int(sd*100))/100;

    if (k == 0) {
      mean = random(muo, (upper+muo)/2);
    } 
    else if (k == 1) {
      mean = random((lower+muo)/2, muo);
    } 
    else {
      mean = random((lower+muo)/2, (upper+muo)/2);
    }
    mean = float(int(mean*100))/100;
  }
}