更新 function.py

function.py

@@ -58,6 +58,7 @@ def load_data(file_path):
     return features, labels
 
 
+import numpy as np
 
 def classify0(inX, dataSet, labels, k=3):
     """
@@ -85,24 +86,31 @@ def classify0(inX, dataSet, labels, k=3):
         return -1
 
 
-def normalize(features):
-    min_vals = features.min(axis=0)
-    max_vals = features.max(axis=0)
-    ranges = max_vals - min_vals
-    normalized = (features - min_vals) / ranges
-    normalized[ranges == 0] = 0  # 防止除以零
-    return normalized
-
 if __name__ == "__main__":
+    def load_data(file_path):
+        data = np.loadtxt(file_path, delimiter="\t")
+        features = data[:, :-1]
+        labels = data[:, -1].astype(int)
+        return features, labels
+
+    def normalize(features):
+        min_vals = features.min(axis=0)
+        max_vals = features.max(axis=0)
+        ranges = max_vals - min_vals
+        normalized = (features - min_vals) / ranges
+        normalized[ranges == 0] = 0  # Prevent division by zero
+        return normalized
+
     train_file_path = "datingTrainSet2.tsv"
     train_features, train_labels = load_data(train_file_path)
+    
     test_file_path = "datingTestSet2.tsv"
     test_features, test_labels = load_data(test_file_path)
-
+    
-    # 归一化特征
+    # Normalize features
     train_features = normalize(train_features)
     test_features = normalize(test_features)
-
+    
     correct_count = 0
     for i in range(len(test_features)):
         test_feature = test_features[i].reshape(1, -1)