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Bill Williams Market Facilitation Index for NinjaTrader
kaiji
over 8 years ago
NinjaTrader

Rating:
3 / 5 (Votes 3)
Tags:
oscillator, ninjatrader

The Market Facilitation Index, developed by Dr. Bill Williams, reproduces volume and price characteristics. In order to interpret this indicator you shouldn’t care about absolute values but rather its changes.

For a detailed description see here

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Bollinger BandWidth Percent
Submitted by meralim almost 8 years ago

Indicator / Formula

Copy & Paste Friendly
#region Using declarations
using System;
using System.ComponentModel;
using System.Diagnostics;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Xml.Serialization;
using NinjaTrader.Cbi;
using NinjaTrader.Data;
using NinjaTrader.Gui.Chart;
#endregion

// This namespace holds all indicators and is required. Do not change it.
namespace NinjaTrader.Indicator
{
    /// <summary>
    /// Bill Williams Market Facilitation Index, taken from http://ta.mql4.com/indicators/bills/market_facilitation_index
    /// </summary>
    [Description("Bill Williams Market Facilitation Index")]
    public class BwMfi : Indicator
    {
        #region Variables
        // Wizard generated variables
            private double range = 1; // Default setting for Range
        // User defined variables (add any user defined variables below)
        #endregion

        /// <summary>
        /// This method is used to configure the indicator and is called once before any bar data is loaded.
        /// </summary>
        protected override void Initialize()
        {
            Add(new Plot(Color.FromKnownColor(KnownColor.Orange), PlotStyle.Bar, "MFI"));
            CalculateOnBarClose	= true;
            Overlay				= false;
            PriceTypeSupported	= false;
        }

        /// <summary>
        /// Called on each bar update event (incoming tick)
        /// </summary>
        protected override void OnBarUpdate()
        {
            // Use this method for calculating your indicator values. Assign a value to each
            // plot below by replacing 'Close[0]' with your own formula.
           if(Volume[0]>0) 	MFI.Set(Range*(High[0]-Low[0])/Volume[0]);
        }
		public override string ToString(){
			return "BwMfi";	
		}
        #region Properties
        [Browsable(false)]	// this line prevents the data series from being displayed in the indicator properties dialog, do not remove
        [XmlIgnore()]		// this line ensures that the indicator can be saved/recovered as part of a chart template, do not remove
        public DataSeries MFI
        {
            get { return Values[0]; }
        }

        [Description("")]
        [Category("Parameters")]
        public double Range
        {
            get { return range; }
            set { range = Math.Max(0, value); }
        }
        #endregion
    }
}

#region NinjaScript generated code. Neither change nor remove.
// This namespace holds all indicators and is required. Do not change it.
namespace NinjaTrader.Indicator
{
    public partial class Indicator : IndicatorBase
    {
        private BwMfi[] cacheBwMfi = null;

        private static BwMfi checkBwMfi = new BwMfi();

        /// <summary>
        /// Bill Williams Market Facilitation Index
        /// </summary>
        /// <returns></returns>
        public BwMfi BwMfi(double range)
        {
            return BwMfi(Input, range);
        }

        /// <summary>
        /// Bill Williams Market Facilitation Index
        /// </summary>
        /// <returns></returns>
        public BwMfi BwMfi(Data.IDataSeries input, double range)
        {
            checkBwMfi.Range = range;
            range = checkBwMfi.Range;

            if (cacheBwMfi != null)
                for (int idx = 0; idx < cacheBwMfi.Length; idx++)
                    if (Math.Abs(cacheBwMfi[idx].Range - range) <= double.Epsilon && cacheBwMfi[idx].EqualsInput(input))
                        return cacheBwMfi[idx];

            BwMfi indicator = new BwMfi();
            indicator.BarsRequired = BarsRequired;
            indicator.CalculateOnBarClose = CalculateOnBarClose;
            indicator.Input = input;
            indicator.Range = range;
            indicator.SetUp();

            BwMfi[] tmp = new BwMfi[cacheBwMfi == null ? 1 : cacheBwMfi.Length + 1];
            if (cacheBwMfi != null)
                cacheBwMfi.CopyTo(tmp, 0);
            tmp[tmp.Length - 1] = indicator;
            cacheBwMfi = tmp;
            Indicators.Add(indicator);

            return indicator;
        }

    }
}

// This namespace holds all market analyzer column definitions and is required. Do not change it.
namespace NinjaTrader.MarketAnalyzer
{
    public partial class Column : ColumnBase
    {
        /// <summary>
        /// Bill Williams Market Facilitation Index
        /// </summary>
        /// <returns></returns>
        [Gui.Design.WizardCondition("Indicator")]
        public Indicator.BwMfi BwMfi(double range)
        {
            return _indicator.BwMfi(Input, range);
        }

        /// <summary>
        /// Bill Williams Market Facilitation Index
        /// </summary>
        /// <returns></returns>
        public Indicator.BwMfi BwMfi(Data.IDataSeries input, double range)
        {
            return _indicator.BwMfi(input, range);
        }

    }
}

// This namespace holds all strategies and is required. Do not change it.
namespace NinjaTrader.Strategy
{
    public partial class Strategy : StrategyBase
    {
        /// <summary>
        /// Bill Williams Market Facilitation Index
        /// </summary>
        /// <returns></returns>
        [Gui.Design.WizardCondition("Indicator")]
        public Indicator.BwMfi BwMfi(double range)
        {
            return _indicator.BwMfi(Input, range);
        }

        /// <summary>
        /// Bill Williams Market Facilitation Index
        /// </summary>
        /// <returns></returns>
        public Indicator.BwMfi BwMfi(Data.IDataSeries input, double range)
        {
            if (InInitialize && input == null)
                throw new ArgumentException("You only can access an indicator with the default input/bar series from within the 'Initialize()' method");

            return _indicator.BwMfi(input, range);
        }

    }
}
#endregion

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