self.params.open

strategy/src/predictor.rs

@@ -490,7 +490,7 @@ impl Predictor {
         let sigma_square = now - data_time;
 
         let gamma = self.balance;
-        let kappa = self.fitting_delay;
+        let kappa = self.params.open;
 
         let flow_ratio = Decimal::ZERO;