private void displayGraph()
{
centerAvgGraph.Clear();
centerAvgGraph = GenerateRandomSerie(10, new DateTime(2000, 1, 1));
XAxis.MajorTickInterval = 2;
MaxY = MaxScale + 10.0;
YAxis.Maximum = MaxY;
ReferenceGraph.Series[0].ItemsSource = centerAvgGraph;
ReferenceGraph.Series[1].ItemsSource = GenerateRandomSerie(5, new DateTime(2000, 1, 1));
ReferenceGraph.Series[2].ItemsSource = GenerateRandomSerie(5, new DateTime(2000, 6, 1));
}