WilliamsPctR


Summary

Williams %R is an effective momentum oscillator and was described by Larry Williams for the first time in 1973.

Remarks

It shows the relationship of the close relative to the high-low range over a set period of time.

Syntax

public interface WilliamsPctR

Members

NameTypeSummary
Result PropertyGets the resulting time series of the Williams PctR indicator calculation.

Example 1

private WilliamsPctR _result;
protected override void Initialize()
{
    _result = Indicators.WilliamsPctR(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 Williams % R indicator
    [Robot(TimeZone = TimeZones.UTC, AccessRights = AccessRights.None)]
    public class WilliamsPctRSample : Robot
    {
        private double _volumeInUnits;
        private WilliamsPctR _williamsPctR;
        [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);
            _williamsPctR = Indicators.WilliamsPctR(14);
        }
        protected override void OnBar()
        {
            if (_williamsPctR.Result.Last(1) > -20 && _williamsPctR.Result.Last(2) < -20)
            {
                ClosePositions(TradeType.Buy);
                ExecuteMarketOrder(TradeType.Sell, SymbolName, _volumeInUnits, Label, StopLossInPips, TakeProfitInPips);
            }
            else if (_williamsPctR.Result.Last(1) < -80 && _williamsPctR.Result.Last(2) > -80)
            {
                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);
            }
        }
    }
}
Reference