public DatedDataCollectionGen<double> GetPortionToDisplay(DatedDataCollectionGen<double> d_)
{
if (d_.Length == 0) return d_;
int takeNumber = 0;
switch (m_chartLength)
{
case ChartLength.Hist:
takeNumber = int.MaxValue;
break;
case ChartLength.Month1:
takeNumber = 21;
break;
case ChartLength.Month3:
takeNumber = 63;
break;
case ChartLength.Month6:
takeNumber = 126;
break;
case ChartLength.Year1:
takeNumber = 252;
break;
case ChartLength.Custom:
{
if (CustomStartDate > CustomEndDate)
return d_;
var startDate = d_.Dates[0] < CustomStartDate ? CustomStartDate : d_.Dates[0];
var endDate = d_.Dates.Last() > CustomEndDate ? CustomEndDate : d_.Dates.Last();
return d_.GetSubValues(startDate, endDate);
}
}
return d_.Length < takeNumber
? d_
: d_.GetValuesBetweenDates(d_.Dates[d_.Length - takeNumber], d_.Dates.Last());
}
