Create features/feature_engineering.py

features/feature_engineering.py

@@ -0,0 +1,17 @@
+from sklearn.preprocessing import StandardScaler
+
+def scale_features(X_train, X_test):
+    """
+    Scale features using StandardScaler.
+    
+    Args:
+        X_train (pd.DataFrame): Training features.
+        X_test (pd.DataFrame): Testing features.
+        
+    Returns:
+        X_train_scaled, X_test_scaled: Scaled features.
+    """
+    scaler = StandardScaler()
+    X_train_scaled = scaler.fit_transform(X_train)
+    X_test_scaled = scaler.transform(X_test)
+    return X_train_scaled, X_test_scaled