SampleApp.MainForm.CreateScatterplot C# (CSharp) Method

        public void CreateScatterplot(ZedGraphControl zgc, double[,] graph)
        {
            GraphPane myPane = zgc.GraphPane;
            myPane.CurveList.Clear();

            // Set the titles
            myPane.Title.IsVisible = false;
            myPane.XAxis.Title.Text = columnNames[0];
            myPane.YAxis.Title.Text = columnNames[1];


            // Classification problem
            PointPairList list1 = new PointPairList(); // Z = -1
            PointPairList list2 = new PointPairList(); // Z = +1
            for (int i = 0; i < graph.GetLength(0); i++)
            {
                if (graph[i, 2] == -1)
                    list1.Add(graph[i, 0], graph[i, 1]);
                if (graph[i, 2] == 1)
                    list2.Add(graph[i, 0], graph[i, 1]);
            }

            // Add the curve
            LineItem myCurve = myPane.AddCurve("G1", list1, Color.Blue, SymbolType.Diamond);
            myCurve.Line.IsVisible = false;
            myCurve.Symbol.Border.IsVisible = false;
            myCurve.Symbol.Fill = new Fill(Color.Blue);

            myCurve = myPane.AddCurve("G2", list2, Color.Green, SymbolType.Diamond);
            myCurve.Line.IsVisible = false;
            myCurve.Symbol.Border.IsVisible = false;
            myCurve.Symbol.Fill = new Fill(Color.Green);


            // Fill the background of the chart rect and pane
            //myPane.Chart.Fill = new Fill(Color.White, Color.LightGoldenrodYellow, 45.0f);
            //myPane.Fill = new Fill(Color.White, Color.SlateGray, 45.0f);
            myPane.Fill = new Fill(Color.WhiteSmoke);

            zgc.AxisChange();
            zgc.Invalidate();
        }