public double[] GetPositionSDs()
{
int length = 5;
if (dataManager.DataModelList.Count < length)
{
return null;
}
Vector3D[] right = dataManager.DataModelList.Select(x => x.position_right).ToArray();
double[] result = new double[right.Length];
for (int i = length / 2; i < right.Length - length / 2; i++)
{
result[i] = GetPositionSD(right.Skip(i - length / 2).Take(length).ToArray());
}
return Normalize(result);
}