private void AddData()
{
double[] x0 = new double[] { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 };
double[] y0 = new double[] { 1.9398, 2.9836, 5.9890, 10.2, 20.7414, 23.232, 69.5855, 82.5836, 98.1779, 339.3256 };
double[] ylog = new double[] { 0.6626, 1.0931, 1.7899, 2.3224, 3.0321, 3.1455, 4.2426, 4.4138, 4.5868, 5.8270 };
double[] results = CurveFittingAlgorithms.WeightedLinearRegression(x0, ylog, y0);
// Plot linear scale results:
LinearScale(x0, y0, results);
// Plot log scale results:
LogScale(x0, ylog, results);
}
private void AddData()
{
double[] x0 = new double[] { 0, 1, 2, 3, 4, 5 };
double[] y0 = new double[] { 1.9, 2.7, 3.3, 4.4, 5.5, 6.5 };
double[] results = CurveFittingAlgorithms.StraightLineFit(x0, y0);
myChart.DataCollection.DataList.Clear();
LineCharts.DataSeries ds;
// Plot original data
ds = new LineCharts.DataSeries();
ds.LineColor = Brushes.Transparent;
ds.SeriesName = "Original";
ds.Symbols.SymbolType = LineCharts.Symbols.SymbolTypeEnum.OpenTriangle;
ds.Symbols.BorderColor = Brushes.DarkBlue;
for (int i = 0; i < x0.Length; i++)
{
ds.LineSeries.Points.Add(new Point(x0[i], y0[i]));
}
myChart.DataCollection.DataList.Add(ds);
// Curve fitting data:
ds = new LineCharts.DataSeries();
ds.LineColor = Brushes.DarkGreen;
ds.SeriesName = "Curve Fitting";
for (int i = 0; i < 101; i++)
{
double x = i / 20.0;
double y = results[0] + results[1] * x;
ds.LineSeries.Points.Add(new Point(x, y));
}
myChart.DataCollection.DataList.Add(ds);
myChart.IsLegend = true;
myChart.LegendPosition = LineCharts.Legend.LegendPositionEnum.NorthWest;
//MessageBox.Show(results[0].ToString() + ", " +
// results[1].ToString() + ", " +
// results[2].ToString() + ", ");
}
private void AddData()
{
double[] x0 = new double[] { 1, 2, 3, 4, 5 };
double[] y0 = new double[] { 5.5, 43.1, 128, 290.7, 498.4 };
VectorR[] results = new VectorR[3];
for (int i = 0; i < results.Length; i++)
{
double sigma = 0;
results[i] = CurveFittingAlgorithms.PolynomialFit(x0, y0, i + 1, out sigma);
}
// Plot results:
myChart.DataCollection.DataList.Clear();
LineCharts.DataSeries ds;
// Plot original data:
ds = new LineCharts.DataSeries();
ds.LineColor = Brushes.Transparent;
ds.SeriesName = "Original";
ds.Symbols.SymbolType = LineCharts.Symbols.SymbolTypeEnum.Triangle;
ds.Symbols.BorderColor = Brushes.Black;
for (int i = 0; i < x0.Length; i++)
{
ds.LineSeries.Points.Add(new Point(x0[i], y0[i]));
}
myChart.DataCollection.DataList.Add(ds);
// 1st order fitting data:
ds = new LineCharts.DataSeries();
ds.LineColor = Brushes.DarkGreen;
ds.LineThickness = 2;
ds.SeriesName = "1st Order Fitting";
for (int i = 0; i < 141; i++)
{
double x = -1.0 + i / 20.0;
double y = results[0][0] + results[0][1] * x;
ds.LineSeries.Points.Add(new Point(x, y));
}
myChart.DataCollection.DataList.Add(ds);
// 2nd order fitting data:
ds = new LineCharts.DataSeries();
ds.LineColor = Brushes.Red;
ds.LineThickness = 2;
ds.LinePattern = LineCharts.DataSeries.LinePatternEnum.Dash;
ds.SeriesName = "2nd Order Fitting";
for (int i = 0; i < 141; i++)
{
double x = -1.0 + i / 20.0;
double y = results[1][0] + results[1][1] * x + results[1][2] * x * x;
ds.LineSeries.Points.Add(new Point(x, y));
}
myChart.DataCollection.DataList.Add(ds);
// 3rd order fitting data:
ds = new LineCharts.DataSeries();
ds.LineColor = Brushes.DarkBlue;
ds.LineThickness = 2;
ds.LinePattern = LineCharts.DataSeries.LinePatternEnum.DashDot;
ds.SeriesName = "3rd Order Fitting";
for (int i = 0; i < 141; i++)
{
double x = -1.0 + i / 20.0;
double y = results[2][0] + results[2][1] * x + results[2][2] * x * x + results[2][3] * x * x * x;
ds.LineSeries.Points.Add(new Point(x, y));
}
myChart.DataCollection.DataList.Add(ds);
myChart.IsLegend = true;
myChart.LegendPosition = LineCharts.Legend.LegendPositionEnum.NorthWest;
}
private void AddData()
{
double[] x0 = new double[] { 0, 1, 2, 3, 4, 5 };
double[] y0 = new double[] { 2, 1, 4, 4, 3, 2 };
// First order polynormial (m = 1):
CurveFittingAlgorithms.ModelFunction[] f = new CurveFittingAlgorithms.ModelFunction[] { f0, f1 };
double sigma = 0.0;
VectorR results1 = CurveFittingAlgorithms.LinearRegression(x0, y0, f, out sigma);
// Second order polynormial (m = 2):
f = new CurveFittingAlgorithms.ModelFunction[] { f0, f1, f2 };
VectorR results2 = CurveFittingAlgorithms.LinearRegression(x0, y0, f, out sigma);
// Third order polynormial (m = 3):
f = new CurveFittingAlgorithms.ModelFunction[] { f0, f1, f2, f3 };
VectorR results3 = CurveFittingAlgorithms.LinearRegression(x0, y0, f, out sigma);
// Plot results:
myChart.DataCollection.DataList.Clear();
LineCharts.DataSeries ds;
// Plot original data:
ds = new LineCharts.DataSeries();
ds.LineColor = Brushes.Transparent;
ds.SeriesName = "Original";
ds.Symbols.SymbolType = LineCharts.Symbols.SymbolTypeEnum.Triangle;
ds.Symbols.BorderColor = Brushes.Black;
for (int i = 0; i < x0.Length; i++)
{
ds.LineSeries.Points.Add(new Point(x0[i], y0[i]));
}
myChart.DataCollection.DataList.Add(ds);
// 1st order fitting data:
ds = new LineCharts.DataSeries();
ds.LineColor = Brushes.DarkGreen;
ds.LineThickness = 2;
ds.SeriesName = "1st Order Fitting";
for (int i = 0; i < 141; i++)
{
double x = -1.0 + i / 20.0;
double y = results1[0] + results1[1] * x;
ds.LineSeries.Points.Add(new Point(x, y));
}
myChart.DataCollection.DataList.Add(ds);
// 2nd order fitting data:
ds = new LineCharts.DataSeries();
ds.LineColor = Brushes.Red;
ds.LineThickness = 2;
ds.LinePattern = LineCharts.DataSeries.LinePatternEnum.Dash;
ds.SeriesName = "2nd Order Fitting";
for (int i = 0; i < 141; i++)
{
double x = -1.0 + i / 20.0;
double y = results2[0] + results2[1] * x + results2[2] * x * x;
ds.LineSeries.Points.Add(new Point(x, y));
}
myChart.DataCollection.DataList.Add(ds);
// 3rd order fitting data:
ds = new LineCharts.DataSeries();
ds.LineColor = Brushes.DarkBlue;
ds.LineThickness = 2;
ds.LinePattern = LineCharts.DataSeries.LinePatternEnum.DashDot;
ds.SeriesName = "3rd Order Fitting";
for (int i = 0; i < 141; i++)
{
double x = -1.0 + i / 20.0;
double y = results3[0] + results3[1] * x + results3[2] * x * x + results3[3] * x * x * x;
ds.LineSeries.Points.Add(new Point(x, y));
}
myChart.DataCollection.DataList.Add(ds);
myChart.IsLegend = true;
myChart.LegendPosition = LineCharts.Legend.LegendPositionEnum.NorthWest;
}