Document unknownDocument = new Document();
unknownDocument.addEventSet(null, unknown);
AnalysisDriver analysisDriver = new MahalanobisDistance();
analysisDriver.train(knowns);
List<Pair<String, Double>> t = analysisDriver.analyze(unknownDocument);
for(Pair<String, Double> element : t){
System.out.println(element.toString());
}
String r = t.get(0).getFirst();