public void DrawApproximation(IList <Tuple <double, double> > points)
{
gp.Title.Text = "График аппроксимации";
gp.YAxis.Title.Text = "N(eps)";
gp.XAxis.Title.Text = "eps";
gp.CurveList.Clear();
//Рисуем точки
PointPairList list = new PointPairList();
foreach (Tuple <double, double> point in points)
{
list.Add(point.Item1, point.Item2);
}
LineItem scatterLine = gp.AddCurve("", list, Color.DarkBlue, SymbolType.Triangle);
scatterLine.Line.IsVisible = false;
scatterLine.Symbol.Fill.Color = Color.DarkBlue;
scatterLine.Symbol.Fill.Type = FillType.Brush;
//Рисуем апроксимацию
LessSquare.GetCoefficient(points, out double k, out double b);
PointPairList fList = new PointPairList();
double xMin = ((int)points[0].Item1) - 1;
double xMax = ((int)points[points.Count - 1].Item1) + 1;
double yMin = ((int)points[0].Item2) - 1;
double yMax = ((int)points[points.Count - 1].Item2) + 1;
for (double x = xMin; x < xMax; x++)
{
fList.Add(x, LinearFunction(x, k, b));
}
LineItem line = gp.AddCurve("", fList, Color.Red, SymbolType.None);
gp.XAxis.Scale.Min = xMin;
gp.XAxis.Scale.Max = xMax;
gp.YAxis.Scale.Min = yMin;
gp.YAxis.Scale.Max = yMax;
Graph.AxisChange();
Graph.Invalidate();
}
private double GetAproximationByLessSquareMethod(List <Tuple <double, double> > points)
{
LessSquare.GetCoefficient(points, out double k, out double b);
return(k);
}