//
        string symbol = GetSymbol();
        ENUM_TIMEFRAMES period = GetPeriod();

        //
        int zIndex = barIndex;
        int cIndex = zIndex + 1;
        int pIndex = cIndex + 1;
        int ppIndex = pIndex + 1;

        //
        bool isInited = false;
        //
        XOHCL zBar;
        isInited = zBar.Init(
            symbol,
            period,
            zIndex //
        );
        if (!isInited)
        {
            return result;
        }

        //
        XOHCL cBar;
        isInited = cBar.Init(
            symbol,
            period,
            cIndex //
        );
        if (!isInited)
        {
            return result;
        }

        //
        XOHCL pBar;
        isInited = pBar.Init(
            symbol,
            period,
            pIndex //
        );
        if (!isInited)
        {
            return result;
        }

        //
        XOHCL ppBar;
        isInited = ppBar.Init(
            symbol,
            period,
            ppIndex //
        );
        if (!isInited)
        {
            return result;
        }