Adding buy/sell signals to SMI indicator/newbie help

[big_leon]

Hi,

I've been staring at the screen for hours and out of ideas. Desperate for help

I'd like to add simple up triangles when the fast smi crosses over the average smi and down triangles when it crosses lower. so when the SMI is > SMI average for the previous bar, and then the current bar SMI < SMI average hits for the current bar, the next bar will issue a sell signal.

Where I should start?

		protected override void Initialize()
		{
			Add(new Plot(new Pen(Color.Green,2), PlotStyle.Line, "SMI"));//Plot0
			Add(new Plot(new Pen(Color.Red,2), PlotStyle.Line, "AvgSMI"));//Plot1
			
			Add(new Line(Color.Gray, -40, "Lower"));
			Add(new Line(Color.Gray, 40, "Upper"));
			
			rel_diff	= new DataSeries(this);
			diff		= new DataSeries(this);
			
			CalculateOnBarClose = false;
			AutoScale 			= false;
		}

		/// <summary>
		/// Calculates the indicator value(s) at the current index.
		/// </summary>
		protected override void OnBarUpdate()
		{
			if(CurrentBar < percentKLength || CurrentBar < percentDLength)return;
			
			double min_low = MIN(Low, percentKLength)[0];
			double max_high = MAX(High, percentKLength)[0];
			rel_diff.Set(Close[0] - (max_high + min_low)/2);
			diff.Set(max_high - min_low);
			
			double avgrel = EMA(EMA(rel_diff, percentDLength), percentDLength)[0];
			double avgdiff = EMA(EMA(diff, percentDLength), percentDLength)[0];
			
			smi.Set(avgrel/(avgdiff/2)*100);
			AvgSMI.Set(EMA(smi, percentDLength)[0]);
			
			
		}

[NinjaTrader_AlanP]

Hello big_leon,

Thank you for your note.

I would suggest seeing the SampleMACrossOver strategy preloaded on NinjaTrader for an example of how you could build a strategy which would buy/sell when two plots calculated in an indicator cross. To view this strategy go to Control Center>Tools>Edit NinjaScript>Strategy>SampleMACrossOver.

In the sample strategy, CrossAbove would imply that Fast was below the Slow on the previous bar.

I’ve provided a link to the strategy wizard youtube which covers setting up a cross strategy,

https://www.youtube.com/watch?v=FmBiNYsf1e8

I’ve also included a link to our helpguide which covers building a simple moving average cross,
Helpguide: http://ninjatrader.com/support/helpG..._cross_ove.htm

Please let us know if you need further assistance.