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Why am I getting this error?
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Gurumeher Sawhney
Hey Patrik, the problem was in the initialization of the BollingerBands object. The parameter k was never initialized. Below is the constructor that was being called:
/// </summary>/// <param name="name">The name of this indicator</param>
/// <param name="period">The period of the standard deviation and moving average (middle band)</param>
/// <param name="k">The number of standard deviations specifying the distance between the middle band and upper or lower bands</param>
/// <param name="movingAverageType">The type of moving average to be used</param>
public BollingerBands(String name, int period, decimal k, MovingAverageType movingAverageType = MovingAverageType.Simple)
: base(name)
{
MovingAverageType = movingAverageType;
StandardDeviation = new StandardDeviation(name + "_StandardDeviation", period);
MiddleBand = movingAverageType.AsIndicator(name + "_MiddleBand", period);
LowerBand = MiddleBand.Minus(StandardDeviation.Times(k), name + "_LowerBand");
UpperBand = MiddleBand.Plus(StandardDeviation.Times(k), name + "_UpperBand");
}
The backtest below has k initialized to 2.0:
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