screen-job/src/main/java/com/moral/api/service/impl/ForecastServiceImpl.java
@@ -189,6 +189,8 @@ int size = weatherMaps.size(); Double tempAvg = calculateAvg(weatherMaps, "temp"); Double o3Avg = calculateAvg(weatherMaps, "O3"); if(tempAvg == null || o3Avg == null) continue; Double sum1 = calculateProduct(weatherMaps, "temp", "O3"); Double sum2 = calculateProduct(weatherMaps, "temp", "temp"); double b = (sum1 - size * tempAvg * o3Avg) / (sum2 - size * tempAvg * tempAvg);