public DataRangePartition GetPartition(int index = int.MaxValue)
{
if (index < _partitions.Count)
{
return(_partitions[index]);
}
else
{
var last = _partitions.LastOrDefault();
_partitions.Add(DataRangePartition.Create(last));
return(_partitions.LastOrDefault());
}
}
public void Partition()
{
int start = 0;
List <int> slide;
List <int> maxmin;
DataRangePartition partition = GetPartition();
while (start < _dataPoints.Count)
{
slide = GetNextSlideWindow(start, SlideWindow);
maxmin = FindMaxAndMin(slide.First(), slide.Last());
//step 1: find direction
if (_dataPoints[slide.LastOrDefault()].Close >= _dataPoints[slide.FirstOrDefault()].Close)
{
partition.Direction = TrendDirection.Up;
while (start != maxmin.Last())
{
for (int i = slide.First(); i <= maxmin.Last(); i++)
{
partition.AddData(_dataPoints[i]);
}
start = maxmin.Last();
slide = GetNextSlideWindow(start, SlideWindow);
maxmin = FindMaxAndMin(slide.First(), slide.Last());
}
if (slide.Count == 1)
{
partition.AddData(_dataPoints[start]);
}
start = maxmin.Last() + 1;
if (start < _dataPoints.Count)
{
partition = GetPartition();
}
}
else
{
partition.Direction = TrendDirection.Down;
while (start != maxmin.First())
{
for (int i = slide.First(); i <= maxmin.First(); i++)
{
partition.AddData(_dataPoints[i]);
}
start = maxmin.First();
slide = GetNextSlideWindow(start, SlideWindow);
maxmin = FindMaxAndMin(slide.First(), slide.Last());
}
if (slide.Count == 1)
{
partition.AddData(_dataPoints[start]);
}
start = maxmin.First() + 1;
if (start < _dataPoints.Count)
{
partition = GetPartition();
}
}
}
}