public static Series Polynomial(Series s, PolynomialEquation[] polyList,
DateTime[] polyDateList1, DateTime[] polyDateList2,
DateTime t1, DateTime t2)
{
int sz = s.Count;
Series rval = s.Clone();
for (int i = 0; i < sz; i++)
{
Point point = s[i];
if (point.BoundedBy(t1, t2))
{
Point newPt = new Point(point.DateTime, Point.MissingValueFlag, PointFlag.Missing);
for (int p = 0; p < polyList.Length; p++)
{
PolynomialEquation poly = polyList[p];
if (point.BoundedBy(polyDateList1[p], polyDateList2[p], poly.Min, poly.Max))
{
double val = poly.Eval(point.Value);
if (val < 0)
{
Console.WriteLine("What we have a negative number?? " + point + " eval = " + poly.Eval(point.Value));
// throw new Exception();
}
newPt = new Point(point.DateTime, val, PointFlag.Computed);
break;
}
}
rval.Add(newPt);
}
}
return(rval);
}
/// <summary>
/// Compute a new Time Series based on input series s
/// and polynomial equation.
///
/// Returned series has a time range specified by t1 and t2.
/// Points outside the range of the polynomial equation (min,max)
/// are flaged as Point.MissingValueFlag
/// </summary>
/// <param name="s">input time Series</param>
/// <param name="poly">polynomial equation</param>
/// <param name="t1">starting time for new series</param>
/// <param name="t2">ending time for new series</param>
/// <returns>Time Series</returns>
public static Series Polynomial(Series s, PolynomialEquation poly,
DateTime t1, DateTime t2)
{
int sz = s.Count;
Series rval = s.Clone();
for (int i = 0; i < sz; i++)
{
Point point = s[i];
if (point.BoundedBy(t1, t2))
{
Point newPt;
if (point.BoundedBy(t1, t2, poly.Min, poly.Max))
{
newPt = new Point(point.DateTime, poly.Eval(point.Value), PointFlag.Computed);
}
else
{
newPt = new Point(point.DateTime, Point.MissingValueFlag, PointFlag.Missing);
}
rval.Add(newPt);
}
}
return(rval);
}
public static DataTable Table(PolynomialEquation eq, double min,
double max, double inc, string title)
{
DataTable table = new DataTable("rating");
for (int i = 0; i < 4; i++) // 4 pairs of GateHeight,Flow
{
string colName = "GH" + i;
table.Columns.Add(colName, typeof(double));
colName = "Q" + i;
table.Columns.Add(colName, typeof(double));
}
int numEntries = Convert.ToInt32((max - min) / inc + 2);
int numPerColumn = 51; //(int)Math.Ceiling((double)numEntries /(double)columnCount);
int colIndex = 0;
int rowIndex = 0;
int pageCounter = 0;
for (double gh = min; gh <= max; gh += inc)
{
if (rowIndex >= table.Rows.Count)
{
table.Rows.Add(table.NewRow());
}
table.Rows[rowIndex][colIndex] = gh;
table.Rows[rowIndex][colIndex + 1] = eq.Eval(gh);
rowIndex++;
if (rowIndex >= numPerColumn * (pageCounter + 1))
{
if (colIndex == 6) // new page.
{
colIndex = 0;
//rowIndex keep going..
pageCounter++;
}
else
{
rowIndex -= numPerColumn;
colIndex += 2;
}
}
}
return(table);
}
