private void CreatePairs(DateTime[] dateTimeVector, double[] dataValueVector)
{
mNumericalSeriesPair = new NumericalSeriesPair[dataValueVector.Length];
for (int i = 0; i < dataValueVector.Length; i++)
{
mNumericalSeriesPair[i] = new NumericalSeriesPair(dateTimeVector[i], dataValueVector[i]);
}
}
public NumericalSeriesPair[] Derive(NumericalDataType datatype, int timeInteval)
{
if (timeInteval == 0)
{
timeInteval = 1;
}
DateTime[] mDateTimeVector = DateTimes;
double[] mDataValueVector = Value;
List <NumericalSeriesPair> list = new List <NumericalSeriesPair>();
int startYear = mDateTimeVector.Min().Year;
int year = mDateTimeVector.Max().Year - mDateTimeVector.Min().Year + 1;
int index = 0;
DateTime start = mDateTimeVector.Min();
for (int i = 0; i < year; i++)
{
for (int j = 0; j < 12; j++)
{
int daysInMonth = DateTime.DaysInMonth(startYear + i, j + 1);
double s = (double)daysInMonth / (double)timeInteval;
//int seg =(int)Math.Ceiling( s);
int seg = 6;
for (int c = 0; c < seg - 1; c++)
{
double sum = 0;
DateTime now = start.AddDays(index);
for (int t = 0; t < timeInteval; t++)
{
sum += mDataValueVector[index];
index++;
}
double ave = Math.Round(sum / timeInteval, 3);
NumericalSeriesPair np = new NumericalSeriesPair(now, ave);
list.Add(np);
}
double sum1 = 0;
DateTime now1 = start.AddDays(index);
for (int c = (seg - 1) * timeInteval; c < daysInMonth; c++)
{
sum1 += mDataValueVector[c];
index++;
}
if (datatype == NumericalDataType.Average)
{
double ave1 = Math.Round(sum1 / (daysInMonth - (seg - 1) * timeInteval), 3);
list.Add(new NumericalSeriesPair(now1, ave1));
}
else if (datatype == NumericalDataType.Cumulative)
{
list.Add(new NumericalSeriesPair(now1, sum1));
}
}
}
return(list.ToArray());
}
public NumericalSeriesPair[] Derive(NumericalDataType datatype, TimeUnits outseriesTimeUnit)
{
INumericalSeriesPair[] sourcePairs = SeriesPairs;
NumericalSeriesPair[] derivedParis = null;
DateTime[] mDateTimeVector = DateTimes;
double[] mDataValueVector = Value;
if (datatype == NumericalDataType.Average || datatype == NumericalDataType.Cumulative)
{
if (outseriesTimeUnit == TimeUnits.Week)
{
int startIndex = 0;
DateTime start = mDateTimeVector[0];
foreach (DateTime t in mDateTimeVector)
{
if (t.DayOfWeek == DayOfWeek.Monday)
{
start = t;
break;
}
startIndex++;
}
int weekCount = (mDateTimeVector.Length - startIndex + 1) / 7;
if (weekCount > 0)
{
derivedParis = new NumericalSeriesPair[weekCount];
for (int w = 0; w < weekCount; w++)
{
double weekSum = 0;
double max = startIndex + (w + 1) * 7 > mDateTimeVector.Length ? mDateTimeVector.Length : startIndex + (w + 1) * 7;
for (int j = startIndex + w * 7; j < max; j++)
{
weekSum += mDataValueVector[j];
}
if (datatype == NumericalDataType.Average)
{
derivedParis[w] = new NumericalSeriesPair(start.AddDays(w * 7), Math.Round(weekSum / 7, 4));
}
else if (datatype == NumericalDataType.Cumulative)
{
derivedParis[w] = new NumericalSeriesPair(start.AddDays(w * 7), weekSum);
}
}
}
}
else if (outseriesTimeUnit == TimeUnits.Month)
{
if (datatype == NumericalDataType.Average)
{
var derivedValues = sourcePairs.GroupBy(t => new { t.DateTime.Year, t.DateTime.Month }).Select(group =>
new NumericalSeriesPair(new DateTime(group.Key.Year, group.Key.Month, 1), Math.Round(group.Sum(s => s.Value) / group.Count(), 4)));
derivedParis = derivedValues.ToArray();
}
else if (datatype == NumericalDataType.Cumulative)
{
var derivedValues = sourcePairs.GroupBy(t => new { t.DateTime.Year, t.DateTime.Month }).Select(group =>
new NumericalSeriesPair(new DateTime(group.Key.Year, group.Key.Month, 1), group.Sum(s => s.Value)));
derivedParis = derivedValues.ToArray();
}
}
else if (outseriesTimeUnit == TimeUnits.CommanYear)
{
if (datatype == NumericalDataType.Average)
{
var derivedValues = sourcePairs.GroupBy(t => new { t.DateTime.Year }).Select(group =>
new NumericalSeriesPair(new DateTime(group.Key.Year, 1, 1), Math.Round(group.Sum(s => s.Value) / group.Count(), 4)));
derivedParis = derivedValues.ToArray();
}
else if (datatype == NumericalDataType.Cumulative)
{
var derivedValues = sourcePairs.GroupBy(t => new { t.DateTime.Year }).Select(group =>
new NumericalSeriesPair(new DateTime(group.Key.Year, 1, 1), group.Sum(s => s.Value)));
derivedParis = derivedValues.ToArray();
}
}
else if (outseriesTimeUnit == TimeUnits.FiveDays)
{
derivedParis = Derive(datatype, 5);
}
else if (outseriesTimeUnit == TimeUnits.Day)
{
derivedParis = (NumericalSeriesPair[])sourcePairs;
}
}
return(derivedParis);
}