Update hierarchical precision, recall, and F1 calculation

ham.py

@@ -1,4 +1,4 @@
-"""This module provides functions for calculating hierarchical precicion, recall and f1."""
+"""This module provides functions for calculating hierarchical variants of precicion, recall and F1."""
 
 from typing import List, Set, Dict, Tuple
 
@@ -98,7 +98,7 @@ def hierarchical_f_measure(hP, hR, beta=1.0):
 
 
 # Example list usage:
-# real_codes = ["1111", "1112", "1113", "1114"]
+# reference_codes = ["1111", "1112", "1113", "1114"]
 # predicted_codes = ["1111", "1113", "1120", "1211"]
 # hierarchy_dict = {'1111': {'111', '1', '11'}, '1112': {'111', '1', '11'}, '1113': {'111', '1', '11'}, '1114': {'111', '1', '11'} ...}
 # result = calculate_hierarchical_precision_recall(real_codes, predicted_codes, hierarchy_dict)