ta4j/src/main/java/eu/verdelhan/ta4j/indicators/statistics/PeriodicalGrowthRateIndicator.java
public double getTotalReturn() {

        Decimal totalProduct = Decimal.ONE;
        int completeTimeframes = (getTimeSeries().getTickCount() / timeFrame);

        for (int i = 1; i <= completeTimeframes; i++) {
            int index = i * timeFrame;
            Decimal currentReturn = getValue(index);

            // Skip NaN at the end of a series
            if (currentReturn != Decimal.NaN) {
                currentReturn = currentReturn.plus(Decimal.ONE);
                totalProduct = totalProduct.multipliedBy(currentReturn);
            }
        }

        return (Math.pow(totalProduct.toDouble(), (1.0 / completeTimeframes)));
    }
public double getTotalReturn() {

        Decimal totalProduct = Decimal.ONE;
        int completeTimeframes = (getTimeSeries().getTickCount() / timeFrame);

        for (int i = 1; i <= completeTimeframes; i++) {
            int index = i * timeFrame;
            Decimal currentReturn = getValue(index);

            // Skip NaN at the end of a series
            if (currentReturn != Decimal.NaN) {
                currentReturn = currentReturn.plus(Decimal.ONE);
                totalProduct = totalProduct.multipliedBy(currentReturn);
            }
        }

        return (Math.pow(totalProduct.toDouble(), (1.0 / completeTimeframes)));
    }
Gets the TotalReturn from the calculated results of the method 'calculate'.
For a timeFrame = number of trading days within a year (e. g. 251 days in the US)
and "end of day"-ticks you will get the 'Annualized Total Return'.
Only complete timeFrames are taken into the calculation.
@return the total return from the calculated results of the method 'calculate'