Overnight gap Indicator

[alfonso]

Hi There,
Need some help as I am a bit puzzled why this is not working. I am trying to create an indicator that tells me how big was the gap (Open Today minus Close yesterday). It seems to let me calculate Open today - close today but not open today vs close yesterday. I tried following the sample script for SampleCustomDataSeries. I am sure its something dumb but have not been able to fix it. My current code is below.
Appreciate your help!


/// <summary>
/// Reference sample demonstrating how to use DataSeries objects to store self calculations.
/// </summary>
[Description("Reference sample demonstrating how to use DataSeries objects to store self calculations.")]
public class TestONRange : Indicator
{
#region Variables
private int period = 5;
private int period2 = 10;

// Defines the DataSeries object
private DataSeries myDataSeries; // Define a DataSeries variable

#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()
{
// Adds a plot to our NinjaScript Indicator
Add(new Plot(Color.Red, PlotStyle.Line, "Average Range"));

// Create a new DataSeries object and assign it to the variable myDataSeries declared in the ‘Variables’ region above

myDataSeries = new DataSeries(this); // "this" refers to the indicator, or strategy
// itself. This syncs the DataSeries object
// to historical data bars

CalculateOnBarClose = true;
Overlay = false;
}

/// <summary>
/// Called on each bar update event (incoming tick)
/// </summary>
protected override void OnBarUpdate()
{

// Calculate the range of the overnight gap and set the value as an average of the last x days (note on the error: if I write the below as myDataSeries.Set(Close[0] - Open[0]); i.e calculate the //intraday range, then the indicator shows up in my charts fine.
//however if I set it to take Close 1 bar ago i.e yesterdays close minus todays open it does not work...…

myDataSeries.Set(Close[1] - Open[0]);

AvgR.Set(SMA(myDataSeries, Period)[0]);

}

[NinjaTrader_Jesse]

Hello alfonso,

If you are trying to get the prior day close, I would suggest trying the PriorDayOHLC indicator to gather this value. Close[1] may or may not represent the yesterdays close depending on the series being used and when this is called.

https://ninjatrader.com/support/helpGuides/nt8/en-us/prior_day_ohlc.htm?zoom_highlightsub=PriorDayOHLC

This would not require adding a secondary series or doing other series related tasks, mainly just calling the indicator to retrieve the value.

I look forward to being of further assistance.