plots completed

DisplayWindow.py

@@ -255,7 +255,7 @@ class Advanced(QMainWindow):
         self.scatt.axes.set_xlabel(self.graph_selector_X.currentText())
         self.scatt.axes.set_ylabel(self.graph_selector_Y.currentText())
         self.histogram.axes.set_xlabel(self.graph_selector_X.currentText())
-        self.histogram.axes.set_xlabel("frequency")
+        self.histogram.axes.set_ylabel("frequency")
 
         self.scatt.draw()
         self.histogram.draw()