[HandlerName("Rate of Change")]
    [HandlerCategory("vvIndicators")]
    public class ROC : BasePeriodIndicatorHandler, IDouble2DoubleHandler
    {
        // Rate of Change
        public static IList<double> GenROC(IList<double> src, int period)
        {
            var roc = new double[src.Count];
            for (int i = period; i < src.Count; i++)
            {
                roc[i] = ((src[i] - src[i - period]) / src[i - period]) * 100;
            }
            return roc;
        }

        public IList<double> Execute(IList<double> source)
        {
            return GenROC(source, Period);
        }
    }