public void Save(Stream fileStream)
 {
     KNNDataManager.SaveData(fileStream, this);
 }
 public void Load(Stream fileStream)
 {
     KNNDataManager.LoadData(fileStream, this, out List <Dictionary <object, int> > md, out List <KNNDataPoint> dp);
     LabelMappingDictionaries = md;
     DataPoints = dp;
 }