diff --git a/function.py b/function.py
index bf5d1f9..a810ea0 100644
--- a/function.py
+++ b/function.py
@@ -45,12 +45,9 @@ def load_data(filepath):
     X = data[:, :-1]
     y = data[:, -1]
     
-    # 标准化特征数据
-    X = (X - np.mean(X, axis=0)) / np.std(X, axis=0)
-    
     return X, y
 # 这里实现对率回归训练函数
-def train_logreg(X, y, learning_rate=0.001, num_iterations=5000, regularization_strength=0.001):
+def train_logreg(X, y, learning_rate=0.01, num_iterations=1000, regularization_strength=0):
     """
     对率回归训练函数。