code: protected void parseStats(Variant variant, StudyEntry file, int numAllele, String reference, String[] alternateAlleles, Map<String, String> info) {
          VariantStats vs = new VariantStats();
          Map<String, String> stats = new LinkedHashMap<>();
          for (Map.Entry<String, String> entry : info.entrySet()) {
  
              String infoTag = entry.getKey();
              String infoValue = entry.getValue();
  
              if (statsTags.contains(infoTag)) {
                  stats.put(infoTag, infoValue);
              }
          }
  
          calculate(variant, file, numAllele, reference, alternateAlleles, stats, vs);
  
          file.setStats(StudyEntry.DEFAULT_COHORT, vs);
      }
docs: Looks for tags contained in statsTags and calculates stats parsing them.
  @param variant
  @param file
  @param numAllele
  @param reference
  @param alternateAlleles
  @param info