diff --git a/src/main/java/ru/ulstu/service/TimeSeriesService.java b/src/main/java/ru/ulstu/service/TimeSeriesService.java
index c659b56..ce40fa9 100644
--- a/src/main/java/ru/ulstu/service/TimeSeriesService.java
+++ b/src/main/java/ru/ulstu/service/TimeSeriesService.java
@@ -58,7 +58,7 @@ public class TimeSeriesService {
 
     public TimeSeries getGroupedTendencies(TimeSeries timeSeries) {
         try {
-            timeSeries = smoothTimeSeries(timeSeries, "FTransform").getTimeSeries();
+            timeSeries = getMaxSmoothedTimeSeries(timeSeries).getTimeSeries();
         } catch (Exception e) {
             e.printStackTrace();
         }
@@ -81,7 +81,7 @@ public class TimeSeriesService {
 
     private boolean tsTendencyNotChanged(double diff, double prevDiff) {
         return (diff > 0 && prevDiff > 0)
-                || ((diff < 0 && prevDiff < 0)
-                || ((diff == 0 && prevDiff == 0)));
+                || (diff < 0 && prevDiff < 0)
+                || (diff == 0 && prevDiff == 0);
     }
 }