public static UpDown Series(Bars bars)
{
string description = string.Concat(new object[] { "UpDown()" });
if (bars.Cache.ContainsKey(description))
{
return((UpDown)bars.Cache[description]);
}
UpDown _UpDown = new UpDown(bars, description);
bars.Cache[description] = _UpDown;
return(_UpDown);
}
public StoneTrend(Bars bars, int period, string description)
: base(bars, description)
{
if (bars.Count < period)
{
return;
}
DataSeries updown_s = UpDown.Series(bars);
base.FirstValidValue = period;
for (int i = FirstValidValue; i < bars.Count; i++)
{
base[i] = (@updown_s[i] - @updown_s[i - period]) * 100.0 / period;
}
}