How to display signals on the historical charts?

[hhazizi]

I have formulated a new Ninja Script strategy of EMA crossing the SMA. I can't get the historical graphs to plot the signal "dots" as the EMA4 crosses the SMA21. I have cut and paste the script as follows.....

Also, how do I color the price bar instead of using dots?

// This namespace holds all strategies and is required. Do not change it.
namespace NinjaTrader.Strategy
{
/// <summary>
/// TTM
/// </summary>
[Description("TTM")]
public class MyTTMNinjaStrategy : Strategy
{
#region Variables
// Wizard generated variables
private int myInput0 = 1; // Default setting for MyInput0
// User defined variables (add any user defined variables below)
#endregion
/// <summary>
/// This method is used to configure the strategy and is called once before any strategy method is called.
/// </summary>
protected override void Initialize()
{
Add(EMA(Median, 4));
Add(SMA(Median, 21));
CalculateOnBarClose = true;
}
/// <summary>
/// Called on each bar update event (incoming tick)
/// </summary>
protected override void OnBarUpdate()
{
// Condition set 1
if (CrossAbove(EMA(Median, 4), SMA(Median, 21), 1))
{
DrawDot("My dot" + CurrentBar, true, 0, 0, Color.DodgerBlue);
}
DrawDot("My dot" + CurrentBar, true, 0, 0, Color.Red);
}
#region Properties
[Description("")]
[Category("Parameters")]
public int MyInput0
{
get { return myInput0; }
set { myInput0 = Math.Max(1, value); }
}
#endregion
}
}
#region Wizard settings, neither change nor remove
/*@
<?xml version="1.0" encoding="utf-16"?>
<NinjaTrader>
<Name>MyTTMNinjaStrategy</Name>
<CalculateOnBarClose>True</CalculateOnBarClose>
<Description>TTM</Description>
<Parameters>
<Parameter>
<Default1>
</Default1>
<Default2>1</Default2>
<Default3>
</Default3>
<Description>
</Description>
<Minimum>1</Minimum>
<Name>MyInput0</Name>
<Type>int</Type>
</Parameter>
</Parameters>
<State>
<CurrentState>

Hazizi Hassan

[NinjaTrader_JoshP]

// Condition set 1
if (CrossAbove(EMA(Median, 4), SMA(Median, 21), 1))
{
DrawDot("My dot" + CurrentBar, true, 0, 0, Color.DodgerBlue);
}
DrawDot("My dot" + CurrentBar, true, 0, 0, Color.Red);

You are constantly overwriting your dots for the cross above with your red dots. You need to use different names for the dots.

If you want to color the bar use BarColor = Color.Red.

[hhazizi]

Thank you for your reply.
I've tried using arrow as signal, but still unable to get it plotted on my tick chart. I'm using a demo account. Do I need to delete the historical files then repair DB before getting the arrow signals?

The script are as follows ....

[Description("TTM")]
public class MyTTMNinjaStrategy : Strategy
{
#region Variables
// Wizard generated variables
private int myInput0 = 1; // Default setting for MyInput0
// User defined variables (add any user defined variables below)
#endregion
/// <summary>
/// This method is used to configure the strategy and is called once before any strategy method is called.
/// </summary>
protected override void Initialize()
{
Add(EMA(Median, 4));
Add(SMA(Median, 21));
CalculateOnBarClose = true;
}
/// <summary>
/// Called on each bar update event (incoming tick)
/// </summary>
protected override void OnBarUpdate()
{
// Condition set 1
if (CrossAbove(EMA(Median, 4), SMA(Median, 21), 1))
{
DrawArrowUp("My up arrow" + CurrentBar, false, 0, 0, Color.Lime);
}

[NinjaTrader_JoshP]

Check your Control Center logs for errors.

[hhazizi]

There is no error msg in my log.

[NinjaTrader_JoshP]

How are you determining you are not drawing? You are placing your dots at 0. This may be completely outside the range of your chart.