Questions regarding Supertrend Indicator

firemyst
24 Nov 2022, 06:03

RE:

rgasch said:

Hi, 

could someone who knows please clarify what the Supertrend UpTrend() and DownTrend() methods actually return and why the sample code compares them to Bars.LowPrices/HighPrices?

Thank you

 

This is the sample code I'm referencing:

 

namespace cAlgo.Robots
{
    // This sample cBot shows how to use the Supertrend indicator
    [Robot(TimeZone = TimeZones.UTC, AccessRights = AccessRights.None)]
    public class SupertrendSample : Robot
    {
        private double _volumeInUnits;

        private Supertrend _supertrend;

        [Parameter("Volume (Lots)", DefaultValue = 0.01)]
        public double VolumeInLots { get; set; }

        [Parameter("Stop Loss (Pips)", DefaultValue = 10)]
        public double StopLossInPips { get; set; }

        [Parameter("Take Profit (Pips)", DefaultValue = 10)]
        public double TakeProfitInPips { get; set; }

        [Parameter("Label", DefaultValue = "Sample")]
        public string Label { get; set; }

        public Position[] BotPositions
        {
            get
            {
                return Positions.FindAll(Label);
            }
        }

        protected override void OnStart()
        {
            _volumeInUnits = Symbol.QuantityToVolumeInUnits(VolumeInLots);

            _supertrend = Indicators.Supertrend(10, 3);
        }

        protected override void OnBar()
        {
            if (_supertrend.UpTrend.Last(1) < Bars.LowPrices.Last(1) && _supertrend.DownTrend.Last(2) > Bars.HighPrices.Last(2))
            {
                ClosePositions(TradeType.Sell);

                ExecuteMarketOrder(TradeType.Buy, SymbolName, _volumeInUnits, Label, StopLossInPips, TakeProfitInPips);
            }
            else if (_supertrend.DownTrend.Last(1) > Bars.HighPrices.Last(1) && _supertrend.UpTrend.Last(2) < Bars.LowPrices.Last(2))
            {
                ClosePositions(TradeType.Buy);

                ExecuteMarketOrder(TradeType.Sell, SymbolName, _volumeInUnits, Label, StopLossInPips, TakeProfitInPips);
            }
        }

        private void ClosePositions(TradeType tradeType)
        {
            foreach (var position in BotPositions)
            {
                if (position.TradeType != tradeType) continue;

                ClosePosition(position);
            }
        }
    }
}
 

The UpTrend() and DownTrend() methods return the values when the Supertrend is in an uptrend or downtrend.

There will be a value for one or the other, but not both, because the SuperTrend can't be in both an uptrend and downtrend at the same time.