/// <summary>
/// Initializes a new instance of the <see cref="T:QuantModel.Indicators.HV"/> class.
/// </summary>
/// <param name="source">Source.</param>
/// <param name="cycle">Cycle.</param>
public HV(IIndicator <double> source, int cycle)
{
Source = source;
Cycle = cycle;
var ROI = Source.ROI();
Std = Source.StdDev(Cycle);
Std.Update += Std_Update;
}