Upload titanic.py

titanic.py

@@ -78,6 +78,7 @@ class Titanic(datasets.GeneratorBasedBuilder):
 		print(data.head())
 		data = data[list(features_types_per_config[self.config.name].keys())]
 		data.loc[:, "is_male"] = data.is_male.apply(lambda x: x == "male")
+		data.loc[data.age == "?", "age"] = data.age.apply(lambda x: x if x != "?" else -1)
 		print(data.head())
 
 		return data