更新 function.py

function.py

@@ -1,7 +1,6 @@
 # function.py
 import numpy as np  
-from sklearn.preprocessing import StandardScaler  
-from sklearn.decomposition import PCA  # 可选：用于降维  
+from sklearn.preprocessing import StandardScaler   
 from numpy.linalg import inv, LinAlgError  
 from scipy.spatial.distance import mahalanobis
 """