public void ShouldShowChart2()
        {
            var chart = new SeasonalityChartSingle();
            chart.Create();

            var x = new[] { "-5", "-4", "-3", "-2", "-1", "0", "1", "2", "3", "4", "5" };
            var y = new[] { 10.2, 12.3, 33.0, 24, 65, 36, 17, 28, 19, 25, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20 };
            chart.AddLineChart("test data", x, y);
            chart.VerticalLinesXValuesLabels = new Dictionary<string,string> {{"-4","event1"}, {"3","event2"}};
            var form = chart.DisplayInShowForm("Seasonality Test");
            LookFeel.SetupBenNew();
            form.BackColor = Color.LightSlateGray;
            LookFeel.ProcessControl(form);

            Application.Run(form);
        }