Upload heart.py

heart.py

@@ -165,7 +165,7 @@ class Heart(datasets.GeneratorBasedBuilder):
             data.loc[:, feature] = data[feature].apply(encoding_function)
 
         data = data.astype({"is_male": bool, "has_exercise_induced_angina": bool})
-        data["age"].applymap(int)
+        data[["age"]].applymap(int)
         data = data[data.thal != "?"]
         data = data[data.number_of_major_vessels_colored_by_flourosopy != "?"]
         data = data.infer_objects()