private void DrawBinomial(int n, int y, string Name)
{
if (chart_PosteriorDensity.Series.IndexOf(Name) != -1)
{
MessageBox.Show("图上已经存在相应分布，请勿重复添加！");
return;
}
Series series = new Series(Name);
series.BorderWidth = 3;
series.ChartType = SeriesChartType.Spline;
//double MaxValue = 0;
double Temp = 0;
for (double i = 0.01; i < 1; i = i + 0.05)
{
Temp = n * Stat.BinomialPDF(i, n, y);
if (MaxValue < Temp)
{
MaxValue = Temp;
}
series.Points.AddXY(i, Temp);
}
chart_PosteriorDensity.Series.Add(series);
var XAxis = chart_PosteriorDensity.ChartAreas[0].AxisX;
XAxis.MajorGrid.Enabled = false;
var YAxis = chart_PosteriorDensity.ChartAreas[0].AxisY;
YAxis.MajorGrid.Enabled = false;
XAxis.Maximum = 1;
XAxis.Minimum = 0;
YAxis.Maximum = Math.Ceiling(MaxValue);
}