title: swift 3 alphanumeric sorting re: I, II, III, IV, IX, V,
body: <p>Curious to know if anyone can offer a solution to sorting roman numerals (string type) I through X.  When I sort an array using {$0.compare ($1, options: .numeric) == .orderedAscending}, I get I, II, III, IV, IX, V, VI, VII, VIII X.  As you can see, IX follows IV because of the "I."  </p>
  
  <p>By the way, the data model is a dictionary [<strong>String</strong>:[String:[String]]]  The Bold indicates where in the dictionary the data to be sorted exists.  </p>