private void Create(FileForm ff, int columnCnt)
{
var n = ff.GetCount();
var buffer = new SortedDictionary <int, int>();
double u = 0, q2 = 0;
int valMin = int.MaxValue;
int valMax = int.MinValue;
for (int i = 0; i < n; i++)
{
int val = ff.GetValue(i);
u += val;
if (val < valMin)
{
valMin = val;
}
if (val > valMax)
{
valMax = val;
}
}
u /= n;
var columnSize = (valMax - valMin + columnCnt) / columnCnt;
for (int i = 0; i < n; i++)
{
int val = ff.GetValue(i);
q2 += Math.Pow(val - u, 2);
var columnIndex = (val - valMin) / columnSize;
if (buffer.ContainsKey(columnIndex))
{
buffer[columnIndex]++;
}
else
{
buffer.Add(columnIndex, 1);
}
}
q2 *= 2;
q2 /= n;
foreach (var p in buffer)
{
var columnIndex = p.Key;
var val = columnIndex * columnSize + valMin + columnSize / 2;
var fres = p.Value / (double)n;
var sres = Math.Exp(-Math.Pow(val - u, 2) / q2) / Math.Sqrt(q2 * Math.PI);
_ptrSeries.Points.AddXY(val, fres);
_ptrSecondSeries.Points.AddXY(val, sres);
}
}
