fixing scaling for negative values

rdstar/offline_analysis/selection/selection_info_containers.py

@@ -161,21 +161,22 @@ class CutInfo:
             cut_limits = 0
         elif self.cut_type in ["<", "<="]:
             temp_cut_limits = self.cut_limits
-            self.__cut_limits = (1 + percentage) * self.cut_limits
+            self.__cut_limits = (1 + percentage) * self.cut_limits if self.cut_limits > 0 else (1 - percentage) * self.cut_limits
             cut_str = self.generate_cut_str()[0]
             cut_type = self.cut_type
             cut_limits = self.cut_limits
             self.__cut_limits = temp_cut_limits
         elif self.cut_type in [">", ">="]:
             temp_cut_limits = self.cut_limits
-            self.__cut_limits = (1 - percentage) * self.cut_limits
+            self.__cut_limits = (1 - percentage) * self.cut_limits if self.cut_limits > 0 else (1 + percentage) * self.cut_limits
             cut_str = self.generate_cut_str()[0]
             cut_type = self.cut_type
             cut_limits = self.cut_limits
             self.__cut_limits = temp_cut_limits
         else:
             temp_cut_limits = self.cut_limits
-            self.__cut_limits = ((1 - percentage) * self.cut_limits[0], (1 + percentage) * self.cut_limits[1])
+            self.__cut_limits = ((1 - percentage) * self.cut_limits[0] if self.cut_limits[0] > 0 else (1 + percentage) * self.cut_limits[0],
+                                 (1 + percentage) * self.cut_limits[1] if self.cut_limits[1] > 0 else (1 - percentage) * self.cut_limits[1])
             cut_str = self.generate_cut_str()[0]
             cut_type = self.cut_type
             cut_limits = self.cut_limits