public static Tuple2 <int> GetWindow(DateTime startDate, DateTime endDate, DataSeries <Bar> s)
{
var sList = s.ToList();
var start = sList.FindIndex(x => x.Timestamp.Date >= startDate.Date);
var end = sList.FindLastIndex(x => x.Timestamp.Date <= endDate.Date);
return(new Tuple2 <int>(start, end));
}
