Upload breast.py

breast.py

@@ -123,7 +123,7 @@ class Breast(datasets.GeneratorBasedBuilder):
         data.drop("id", axis="columns", inplace=True)
         
         data.columns = _BASE_FEATURE_NAMES
-        data.is_cancer.apply(lambda x: 0 if x == 2 else 1)
+        data.loc[:, "is_cancer"] = data.is_cancer.apply(lambda x: 0 if x == 2 else 1)
         
         if config == "cancer":
             return data