code: function(set1, set2) {
      return this.jointSetWithCallback(set1, set2, function(a,b) { return this.eqRough(a,b); });
    }
docs: SpahQL.DataHelper.eqSetRough(set1, set2) -> Boolean result
  - set1 (Array): The value at the left-hand side of the comparator
  - set2 (Array): The value at the right-hand side of the comparator
  
  Compares two sets under the rules of rough equality. A result of true
  is returned if any value in the left-hand set is roughly equal to any
  value in the right-hand set.