WellesWilderSmoothing

Summary

The Welles Wilder's Smoothing indicator is an exponential moving average, but it has different alpha ration. As a result it responds to price changes slower.

Remarks

Usage is the same as EMA usage. Please mind the different in alpha ration.

Syntax

public interface WellesWilderSmoothing : MovingAverage, IIndicator

Members

Name	Type	Summary

Example 1

private WellesWilderSmoothing _result;
protected override void Initialize()
{
    _result = Indicators.WellesWilderSmoothing(MarketSeries.Close, 14);
}
public override void Calculate(int index)
{
    double result = _result.Result[index];
}

Example 2

using cAlgo.API;
using cAlgo.API.Indicators;
namespace cAlgo.Robots
{
    // This sample cBot shows how to use the Welles Wilder Smoothing indicator
    [Robot(TimeZone = TimeZones.UTC, AccessRights = AccessRights.None)]
    public class WellesWilderSmoothingSample : Robot
    {
        private double _volumeInUnits;
        private WellesWilderSmoothing _fastWellesWilderSmoothing;
        private WellesWilderSmoothing _slowWellesWilderSmoothing;
        [Parameter("Source", Group = "Fast MA")]
        public DataSeries FastMaSource { get; set; }
        [Parameter("Period", DefaultValue = 9, Group = "Fast MA")]
        public int FastMaPeriod { get; set; }
        [Parameter("Source", Group = "Slow MA")]
        public DataSeries SlowMaSource { get; set; }
        [Parameter("Period", DefaultValue = 20, Group = "Slow MA")]
        public int SlowMaPeriod { get; set; }
        [Parameter("Volume (Lots)", DefaultValue = 0.01, Group = "Trade")]
        public double VolumeInLots { get; set; }
        [Parameter("Stop Loss (Pips)", DefaultValue = 10, Group = "Trade")]
        public double StopLossInPips { get; set; }
        [Parameter("Take Profit (Pips)", DefaultValue = 10, Group = "Trade")]
        public double TakeProfitInPips { get; set; }
        [Parameter("Label", DefaultValue = "Sample", Group = "Trade")]
        public string Label { get; set; }
        public Position[] BotPositions
        {
            get
            {
                return Positions.FindAll(Label);
            }
        }
        protected override void OnStart()
        {
            _volumeInUnits = Symbol.QuantityToVolumeInUnits(VolumeInLots);
            _fastWellesWilderSmoothing = Indicators.WellesWilderSmoothing(FastMaSource, FastMaPeriod);
            _slowWellesWilderSmoothing = Indicators.WellesWilderSmoothing(SlowMaSource, SlowMaPeriod);
        }
        protected override void OnBar()
        {
            if (_fastWellesWilderSmoothing.Result.HasCrossedAbove(_slowWellesWilderSmoothing.Result, 0))
            {
                ClosePositions(TradeType.Sell);
                ExecuteMarketOrder(TradeType.Buy, SymbolName, _volumeInUnits, Label, StopLossInPips, TakeProfitInPips);
            }
            else if (_fastWellesWilderSmoothing.Result.HasCrossedBelow(_slowWellesWilderSmoothing.Result, 0))
            {
                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);
            }
        }
    }
}

Reference