更新 function.py

function.py

@@ -4,8 +4,16 @@ id = "202210423201"
 name = "陈瑞琪祥"
 
 def load_data(filepath):
-    data = np.loadtxt(filepath, delimiter=',')
-    return data[:, :-1], data[:, -1].astype(int)
+    # 使用numpy的genfromtxt函数加载数据，并处理缺失值
+    data = np.genfromtxt(filepath, delimiter=',', filling_values=np.nan)
+    # 将字符串'?'替换为nan
+    data = np.where(data == '?', np.nan, data)
+    # 将数据转换为float类型
+    data = data.astype(float)
+    # 分离特征和标签
+    X = data[:, :-1]
+    y = data[:, -1].astype(int)
+    return X, y
 
 def train_svm(X, y, learning_rate=0.01, iterations=1000, regularization=1.0):
     n_samples, n_features = X.shape