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RelativeStrengthIndex

Summary

The RSI (Wilder) is momentum oscillator, measuring the velocity and magnitude of directional price movements.

Remarks

The RSI is most typically used on a 14 day timeframe, measured on a scale from 0 to 100, with high and low levels marked at 70 and 30, respectively. Shorter or longer timeframes are used for alternately shorter or longer outlooks. More extreme high and low levels�80 and 20, or 90 and 10�occur less frequently but indicate stronger momentum.

Signature 

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public abstract interface RelativeStrengthIndex

Namespace

cAlgo.API.Indicators

Examples

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 private RelativeStrengthIndex _rsi;
 protected override void Initialize()
 {
     _rsi = Indicators.RelativeStrengthIndex(Bars.ClosePrices, 14);
 }
 public override void Calculate(int index)
 {
     double result = _rsi.Result[index];
 }

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 using cAlgo.API;
 using cAlgo.API.Indicators;
 namespace cAlgo.Robots
 {
     // This sample cBot shows how to use the Relative Strength Index indicator
     [Robot(TimeZone = TimeZones.UTC, AccessRights = AccessRights.None)]
     public class RelativeStrengthIndexSample : Robot
     {
         private double _volumeInUnits;
         private RelativeStrengthIndex _relativeStrengthIndex;
         [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);
             _relativeStrengthIndex = Indicators.RelativeStrengthIndex(Bars.ClosePrices, 20);
         }
         protected override void OnBar()
         {
             if (_relativeStrengthIndex.Result.Last(1) > 70 && _relativeStrengthIndex.Result.Last(2) < 70)
             {
                 ClosePositions(TradeType.Buy);
                 ExecuteMarketOrder(TradeType.Sell, SymbolName, _volumeInUnits, Label, StopLossInPips, TakeProfitInPips);
             }
             else if (_relativeStrengthIndex.Result.Last(1) < 20 && _relativeStrengthIndex.Result.Last(2) > 20)
             {
                 ClosePositions(TradeType.Sell);
                 ExecuteMarketOrder(TradeType.Buy, SymbolName, _volumeInUnits, Label, StopLossInPips, TakeProfitInPips);
             }
         }
         private void ClosePositions(TradeType tradeType)
         {
             foreach (var position in BotPositions)
             {
                 if (position.TradeType != tradeType) continue;
                 ClosePosition(position);
             }
         }
     }
 }

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 import clr
 clr.AddReference("cAlgo.API")
 from cAlgo.API import *
 class Test():    
     def initialize(self):
         self.relativeStrengthIndex = api.Indicators.RelativeStrengthIndex(api.Bars.ClosePrices, 14)
     def calculate(self, index):
         result = self.relativeStrengthIndex.Result[index]

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 import clr
 clr.AddReference("cAlgo.API")
 # Import cAlgo API types
 from cAlgo.API import *
 # Import trading wrapper functions
 from robot_wrapper import *
 class RelativeStrengthIndexSample():
     def on_start(self):
         self.volumeInUnits = api.Symbol.QuantityToVolumeInUnits(api.VolumeInLots)
         self.relativeStrengthIndex = api.Indicators.RelativeStrengthIndex(api.Source, api.Periods)
     def on_bar_closed(self):
         if self.relativeStrengthIndex.Result.Last(0) > api.UpValue and self.relativeStrengthIndex.Result.Last(1) <= api.UpValue:
             self.close_positions(TradeType.Sell)
             api.ExecuteMarketOrder(TradeType.Buy, api.SymbolName, self.volumeInUnits, api.Label, api.StopLossInPips, api.TakeProfitInPips)
         elif self.relativeStrengthIndex.Result.Last(0) < api.DownValue and self.relativeStrengthIndex.Result.Last(1) >= api.DownValue:
             self.close_positions(TradeType.Buy)
             api.ExecuteMarketOrder(TradeType.Sell, api.SymbolName, self.volumeInUnits, api.Label, api.StopLossInPips, api.TakeProfitInPips)
     def get_bot_positions(self):
         return api.Positions.FindAll(api.Label)
     def close_positions(self, tradeType):
         for position in self.get_bot_positions():
             if position.TradeType != tradeType:
                 continue
             api.ClosePosition(position)

Properties

Result

Summary

Gets the resulting time series of the Relative Strength Index indicator calculation.

Signature 

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public abstract IndicatorDataSeries Result {get;}

Return Value

IndicatorDataSeries

Examples

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 private RelativeStrengthIndex _rsi;
 protected override void Initialize()
 {
     _rsi = Indicators.RelativeStrengthIndex(Bars.ClosePrices, 14);
 }
 public override void Calculate(int index)
 {
     double result = _rsi.Result[index];
 }

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 import clr
 clr.AddReference("cAlgo.API")
 from cAlgo.API import *
 class Test():    
     def initialize(self):
         self.relativeStrengthIndex = api.Indicators.RelativeStrengthIndex(api.Bars.ClosePrices, 14)
     def calculate(self, index):
         result = self.relativeStrengthIndex.Result[index]