更新 function.py

function.py

@@ -64,18 +64,10 @@ def load_data(filepath):
     - X (np.array): 特征数据。
     - y (np.array): 标签数据。
     """
-    # 使用np.genfromtxt加载数据，并且忽略文件中不能转换为float的行
-    with open(filepath, 'r') as file:
-        lines = file.readlines()
-    
-    data = []
-    for line in lines:
-        split_line = line.strip().split()
-        # 将非数值数据转换为0
-        split_line = [float(x) if x else 0 for x in split_line]
-        data.append(split_line)
-    
-    data = np.array(data)
+    data = np.genfromtxt(filepath, delimiter=',', dtype=float, filling_values=0)
+    # 将问号 '?' 替换为 NaN，并将 NaN 替换为 0
+    data = np.where(data == '?', np.nan, data)
+    data = np.where(np.isnan(data), 0, data)
     X = data[:, :-1]
     y = data[:, -1]
     return X, y