ENH: Add columns SL and TP to trade_df stats (kernc#1039)

* Added TP and SL into stats file.

* Update column order and add test

Author: aligheshlaghi97

backtesting/_stats.py

@@ -64,13 +64,15 @@ def compute_stats(
             'ExitBar': [t.exit_bar for t in trades],
             'EntryPrice': [t.entry_price for t in trades],
             'ExitPrice': [t.exit_price for t in trades],
+            'SL': [t.sl for t in trades],
+            'TP': [t.tp for t in trades],
             'PnL': [t.pl for t in trades],
             'ReturnPct': [t.pl_pct for t in trades],
             'EntryTime': [t.entry_time for t in trades],
             'ExitTime': [t.exit_time for t in trades],
-            'Tag': [t.tag for t in trades],
         })
         trades_df['Duration'] = trades_df['ExitTime'] - trades_df['EntryTime']
+        trades_df['Tag'] = [t.tag for t in trades]
         commissions = sum(t._commissions for t in trades)
     del trades
 

backtesting/test/_test.py

@@ -335,7 +335,7 @@ def almost_equal(a, b):
 
         self.assertSequenceEqual(
             sorted(stats['_trades'].columns),
-            sorted(['Size', 'EntryBar', 'ExitBar', 'EntryPrice', 'ExitPrice',
+            sorted(['Size', 'EntryBar', 'ExitBar', 'EntryPrice', 'ExitPrice', 'SL', 'TP',
                     'PnL', 'ReturnPct', 'EntryTime', 'ExitTime', 'Duration', 'Tag']))
 
     def test_compute_stats_bordercase(self):