kappa记录近10秒的成交量

strategy/src/predictor.rs

@@ -656,7 +656,7 @@ impl Predictor {
 
         let gamma = self.fair_rate_focus_open;
 
-        let kappa = (self.fair_price - self.fair_price_ema_long) / self.fair_price_ema_long;
+        let kappa = self.trade_short_vec.deque.iter().map(|item| item.value).sum();
 
         let flow_ratio = Decimal::ZERO;
         let ref_price = self.fair_price;