/// <summary>
/// Creates a new CompositeIndicator such that the result will be the product of the left and the constant
/// </summary>
/// <remarks>
/// value = left*constant
/// </remarks>
/// <param name="left">The left indicator</param>
/// <param name="constant">The constant value to multiple by</param>
/// <returns>The product of the left to the right indicators</returns>
public static CompositeIndicator <T> Times <T>(this IndicatorBase <T> left, decimal constant)
where T : IBaseData
{
var constantIndicator = new ConstantIndicator <T>(constant.ToString(CultureInfo.InvariantCulture), constant);
return(left.Times(constantIndicator));
}
/// <summary>
/// Initializes a new instance of the BollingerBands class
/// </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);
var kConstant = new ConstantIndicator <IndicatorDataPoint>(k.ToString(), k);
LowerBand = MiddleBand.Minus(StandardDeviation.Times(kConstant), name + "_LowerBand");
UpperBand = MiddleBand.Plus(StandardDeviation.Times(kConstant), name + "_UpperBand");
}
/// <summary>
/// Creates a new CompositeIndicator such that the result will be the sum of the left and the constant
/// </summary>
/// <remarks>
/// value = left + constant
/// </remarks>
/// <param name="left">The left indicator</param>
/// <param name="constant">The addend</param>
/// <returns>The sum of the left and right indicators</returns>
public static CompositeIndicator <IndicatorDataPoint> Plus(this IndicatorBase <IndicatorDataPoint> left, decimal constant)
{
var constantIndicator = new ConstantIndicator <IndicatorDataPoint>(constant.ToString(CultureInfo.InvariantCulture), constant);
return(left.Plus(constantIndicator));
}
/// <summary>
/// Creates a new CompositeIndicator such that the result will be the difference of the left and constant
/// </summary>
/// <remarks>
/// value = left - constant
/// </remarks>
/// <param name="left">The left indicator</param>
/// <param name="constant">The subtrahend</param>
/// <returns>The difference of the left and right indicators</returns>
public static CompositeIndicator Minus(this IndicatorBase left, decimal constant)
{
var constantIndicator = new ConstantIndicator <IBaseData>(constant.ToString(CultureInfo.InvariantCulture), constant);
return(left.Minus(constantIndicator));
}
