Differential Indicator, is possible?

[paolfili]

Hello.
Sorry,but I' don't find any solution to a my (probably silly) question.
I want to program such indicator:

Plot0.Set((Close[0]-Close[10])/(Vol[0]-Vol[10]))

/*CalculateOnBarClose = false;*/


In all my attempts compilation OK, but no plot.
Can anyone suggest me the right direction?

Thanks

Paolo

[cls71]

Hello.
Sorry,but I' don't find any solution to a my (probably silly) question.
I want to program such indicator:

Plot0.Set((Close[0]-Close[10])/(Vol[0]-Vol[10]))

/*CalculateOnBarClose = false;*/


In all my attempts compilation OK, but no plot.
Can anyone suggest me the right direction?

Thanks

Paolo

Hello,

try this:

if ( CurrentBar < 10 ) return;
Plot0.Set((Close[0]-Close[10])/(Vol[0]-Vol[10]))

Regards

[paolfili]

Thanks.
No way ....


------------------------
This is the code:
------------------------


#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>
/// Difference in Price
/// </summary>
[Description("Difference in Price")]
public class DiffPrice : Indicator
{
#region Variables
// Wizard generated variables
// 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.SlateGray), PlotStyle.Line, "Plot0"));
CalculateOnBarClose = false;
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 ( CurrentBar < 10 ) return;
Plot0.Set((Close[0]-Close[10])/(Volume[0]-Volume[10]));
}

#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 Plot0
{
get { return Values[0]; }
}

#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 DiffPrice[] cacheDiffPrice = null;

private static DiffPrice checkDiffPrice = new DiffPrice();

/// <summary>
/// Difference in Price
/// </summary>
/// <returns></returns>
public DiffPrice DiffPrice()
{
return DiffPrice(Input);
}

/// <summary>
/// Difference in Price
/// </summary>
/// <returns></returns>
public DiffPrice DiffPrice(Data.IDataSeries input)
{

if (cacheDiffPrice != null)
for (int idx = 0; idx < cacheDiffPrice.Length; idx++)
if (cacheDiffPrice[idx].EqualsInput(input))
return cacheDiffPrice[idx];

DiffPrice indicator = new DiffPrice();
indicator.BarsRequired = BarsRequired;
indicator.CalculateOnBarClose = CalculateOnBarClose;
indicator.Input = input;
indicator.SetUp();

DiffPrice[] tmp = new DiffPrice[cacheDiffPrice == null ? 1 : cacheDiffPrice.Length + 1];
if (cacheDiffPrice != null)
cacheDiffPrice.CopyTo(tmp, 0);
tmp[tmp.Length - 1] = indicator;
cacheDiffPrice = 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>
/// Difference in Price
/// </summary>
/// <returns></returns>
[Gui.Design.WizardCondition("Indicator")]
public Indicator.DiffPrice DiffPrice()
{
return _indicator.DiffPrice(Input);
}

/// <summary>
/// Difference in Price
/// </summary>
/// <returns></returns>
public Indicator.DiffPrice DiffPrice(Data.IDataSeries input)
{
return _indicator.DiffPrice(input);
}

}
}

// This namespace holds all strategies and is required. Do not change it.
namespace NinjaTrader.Strategy
{
public partial class Strategy : StrategyBase
{
/// <summary>
/// Difference in Price
/// </summary>
/// <returns></returns>
[Gui.Design.WizardCondition("Indicator")]
public Indicator.DiffPrice DiffPrice()
{
return _indicator.DiffPrice(Input);
}

/// <summary>
/// Difference in Price
/// </summary>
/// <returns></returns>
public Indicator.DiffPrice DiffPrice(Data.IDataSeries input)
{
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.DiffPrice(input);
}

}
}
#endregion

Hello,

try this:

if ( CurrentBar < 10 ) return;
Plot0.Set((Close[0]-Close[10])/(Vol[0]-Vol[10]))

Regards

[NinjaTrader_Bertrand]

paolfili, any errors in the log tab when this indicator is applied to the chart? You probably run into divide by 0 / overflow issues with this guide -

You can check into the default 'Stochastics' indicator (K.Set piece) to see how you can guard agains this.