Please! Help with code on Volume.

[olchik]

Why is this not returning anything on chart.

namespace NinjaTrader.NinjaScript.Indicators
{
public class PL : Indicator
{

private double pol;

protected override void OnStateChange()
{
if (State == State.SetDefaults)
{
Description = @"PL";
Name = "PL";
Calculate = Calculate.OnBarClose;
IsOverlay = true;
DisplayInDataBox = true;
DrawOnPricePanel = true;
DrawHorizontalGridLines = true;
DrawVerticalGridLines = true;
PaintPriceMarkers = true;
ScaleJustification = NinjaTrader.Gui.Chart.ScaleJustification.Right;
IsSuspendedWhileInactive = true;

AddPlot(new Stroke(Brushes.Red), PlotStyle.Line, "Plot0");

}
else if (State == State.Configure)
{

}
}
protected override void OnBarUpdate()
{

}

#region Properties

[Browsable(false)]
[XmlIgnore]
public Series<double> Plot0
{
get { return Values[0]; }
}
#endregion

[s.kinra]

Hello olchik,
Add below code before your calculation:

if(CurrentBar < 2)
return;

Hope it helps!

[olchik]

s.kinra Yes! Thank you very much!

[NinjaTrader_ChelseaB]

Hello olchik,

Welcome to the NinjaTrader forums!

s.kinra is indicating there may be an indexing error when calling Volume[2] or Close[2] before there are two bars existing.

If a script does not appear to enabled, be sure to check the Log tab of Control Center for run-time error messages which disable the script.

Below are links to the help guide on indexing errors and CurrentBar.

https://ninjatrader.com/support/helpGuides/nt8/referencing_the_correct_bar.htm

https://ninjatrader.com/support/helpGuides/nt8/currentbar.htm