Create preprocessors.py

preprocessors.py

@@ -0,0 +1,19 @@
+# preprocessors.py
+import pandas as pd
+
+def add_store_age(df):
+    df = df.copy()
+    df['Store_Age'] = 2025 - df['Store_Established_Year']
+    df = df.drop(columns=['Store_Established_Year'])
+    return df
+
+def map_ordered_features(X):
+    sugar_order_map = {'No Sugar': 0, 'Low Sugar': 1, 'Regular': 2}
+    size_order_map = {'Small': 0, 'Medium': 1, 'High': 2}
+    city_order_map = {'Tier 3': 0, 'Tier 2': 1, 'Tier 1': 2}
+
+    X = X.copy()
+    X['Product_Sugar_Content'] = X['Product_Sugar_Content'].map(sugar_order_map).astype(int)
+    X['Store_Size'] = X['Store_Size'].map(size_order_map).astype(int)
+    X['Store_Location_City_Type'] = X['Store_Location_City_Type'].map(city_order_map).astype(int)
+    return X