Update liver.py

liver.py

@@ -73,6 +73,7 @@ class ILPD(datasets.GeneratorBasedBuilder):
     def _generate_examples(self, filepath: str):
         data = pandas.read_csv(filepath)
         data[["is_male"]].applymap(bool)
+        data[["class"]].applymap(lambda x: x - 1)
 
         for row_id, row in data.iterrows():
             data_row = dict(row)