更新 function.py

function.py

@@ -5,7 +5,7 @@ from collections import Counter
   
 # 学号和姓名（这部分在实际代码中可能不需要，但为了完整性保留）  
 id = "202210423111"  
-name = "李劲"  
+name = ""  
   
 def classify(input_vector, dataSet, labels, mean_vector, inv_cov_matrix, k=1):  
     """  
@@ -56,7 +56,14 @@ def load_dataset(directory):
       
     features = np.array(features)  
     labels = np.array(labels)  
-      
+  
+	# 假设cov_matrix是原始协方差矩阵  
+
+	regularization_term = 1e-5 * np.eye(cov_matrix.shape[0])  
+
+	cov_matrix_regularized = cov_matrix + regularization_term  
+
+	inv_cov_matrix = np.linalg.inv(cov_matrix_regularized) 
     # 计算均值向量和协方差矩阵  
     mean_vector = np.mean(features, axis=0)  
     cov_matrix = np.cov(features, rowvar=False)