/// <summary>
/// PeriodDF
/// </summary>
/// <param name="couponFrequency"></param>
/// <param name="yield"></param>
/// <param name="compoundingFrequency"></param>
/// <returns></returns>
public double PeriodDF(int couponFrequency, double yield, int compoundingFrequency)
{
return(BondAnalytics.PeriodDF(couponFrequency, yield, compoundingFrequency));
}
