diff --git a/statapp/main_window.py b/statapp/main_window.py
index 3fadbdc..9973cb7 100644
--- a/statapp/main_window.py
+++ b/statapp/main_window.py
@@ -74,7 +74,7 @@ class MainWindow(QMainWindow):
         gw = GenerateWindow()
         if gw.exec():
             y = np.random.normal(gw.mat, gw.deviation, size=(gw.count, 1))
-            self.model.updateAllData(y)
+            self.model.updateAllData(y.round(2))
             self.isDataChanged = True
 
     @Slot()
@@ -107,7 +107,7 @@ class MainWindow(QMainWindow):
 
             data = self.model.getData()
 
-            x_arr = x_arr.reshape(len(x_arr), 1)
+            x_arr = x_arr.reshape(len(x_arr), 1).round(2)
             # dd = dd.reshape(len(dd), 1)
             data = np.concatenate((data, x_arr), axis=1)
             # data = np.concatenate((data, dd), axis=1)