public static DataArray <double> Momentum(DataArray <double> data, int periods)
{
if (data == null)
{
throw new ArgumentNullException("data", "DataArray<double> must not be null.");
}
if (periods <= 0)
{
throw new ArgumentOutOfRangeException("periods", "Periods must not be negative or zero.");
}
return(ChartMath.Multiply(ChartMath.Divide(data, Reference(data, -periods)), 100.0));
}
public static DataArray <double> RateOfChange(DataArray <double> data, int periods)
{
if (data == null)
{
throw new ArgumentNullException("data", "DataArray<double> must not be null.");
}
if (periods <= 0)
{
throw new ArgumentOutOfRangeException("periods", "Periods must not be negative or zero.");
}
DataArray <double> array = Reference(data, -periods);
return(ChartMath.Multiply(ChartMath.Divide(ChartMath.Subtract(data, array), array), 100.0));
}
public static DataArray <double> SimpleMovingAverage(StockSeriesData data, int periods)
{
return(ChartMath.Divide(ChartMath.Sum(data, periods), periods));
}