Automatically detect and draw a divergence

[tradinginzen]

I am curious if anyone has any samples that would detect either a divergence between price and an indicator and draw a trendline on the diverging indicator or (really what I want) divergences between two indicators. I know that if I could do price/indicator divergence then I could easily do indicator/indicator divergence. However, the detection code and drawing the subsequent trendline over the divergence on the indicator is new to me.

Thanks!!

[NinjaTrader_Bertrand]

Hi, try the 'DivergenceSpotter' from our sharing section - http://www.ninjatrader-support2.com/...ergence&desc=1

[tradinginzen]

Thanks!! I will take a look.

[clfield]

Drawing lines on Indicator panel

I have a working Divergence indicator whih I am currently using on the MACD and price. I an get it to Draw a line from the Peaks or valleys in quetion on the price bars just fine. However I can not get it to draw lines in the indicator panel. It is easy enough to do this manually so I am hoping it can be done with code too....

[tradinginzen]

I have a working Divergence indicator whih I am currently using on the MACD and price. I an get it to Draw a line from the Peaks or valleys in quetion on the price bars just fine. However I can not get it to draw lines in the indicator panel. It is easy enough to do this manually so I am hoping it can be done with code too....

I can try to help if you post the code.

[clfield]

I am updating NT right now. Also I am having issues with the plotting in the Price panel today. Worked yesterday but not today????
I will post code here when I get NT running again.

[NinjaTrader_Bertrand]

Hi clfield, could you please clarify what issues you are having and also report back if they are resolved after upgrading to 6.5.1000.9 ? Thanks!

[clfield]

I sent an email support request to you just a couple of minutes ago. I am having two problems, both with Drawing lines. I wish to connect the related peaks or valleys on both the price chart and on the indicator when the divergence is detected. I thought I had the line on the chart working, but today it does not work either. Here is the related code which is embeded in a MACD type indicator.

if( CurrentBar > 20)
{
// Check indicator for Divergence with Price data
Print("----------------------------------- ");
Print(Time[0]);
Print("Diff[0] = "+ Diff[0]);


/*-------------------------------------------------------------------------------------------------------------
Determine LAST PEAK in the ZeroLag_TEMA_HATEMA_MACD.Diff Line, record values for it and previous peak
-------------------------------------------------------------------------------------------------------------*/
//Only Look for Peaks in Diif Line
if(Diff[0] < Diff[1] && Diff[1] > Diff[2])
{
//Only take peaks that are above zero line
if( Diff[1] > 0.0)
{

Print("----------------------------------- ");
Print("TestPeakDiff= "+TestPeakDiff);

ThirdPeakDiff = PrevPeakDiff;
ThirdPeakPriceDiff = PrevPeakPriceDiff;
ThirdPeakBarDiff = PrevPeakBarDiff;
ThirdPeakBarsAgo = (Bars.BarsSinceSession - ThirdPeakBarDiff);

PrevPeakDiff = LastPeakDiff;
PrevPeakPriceDiff = LastPeakPriceDiff;
PrevPeakBarDiff = LastPeakBarDiff;
PrevPeakBarsAgo = (Bars.BarsSinceSession - PrevPeakBarDiff);

LastPeakDiff = Diff[1];
LastPeakPriceDiff = High[1];
LastPeakBarDiff = Bars.BarsSinceSession-1;


// DrawVerticalLine("MACD2"+CurrentBar,1,Color.Chartr euse,DashStyle.Dash,1);

Print(" ");
Print("----------------------------------- ");
Print(Time[0]);
Print("Peak in ZLMACD.Diff ");
Print("LastPeakDiff= "+LastPeakDiff);
Print("LastPeakPrice= "+LastPeakPriceDiff);
Print("LastPeakBar= "+LastPeakBarDiff);
Print("LastPeakDiff="+ LastPeakDiff);
Print("PrevPeakDiff="+ PrevPeakDiff);
Print("LastPeakPriceDiff="+ LastPeakPriceDiff);
Print("PrevPeakPriceDiff="+ PrevPeakPriceDiff);
Print("LastPeakBarDiff="+ LastPeakBarDiff);
Print("PrevPeakBarDiff="+ PrevPeakBarDiff);

// Check for regular divergence in Peaks on ZLMACD.Diff line
if( LastPeakPriceDiff > PrevPeakPriceDiff && LastPeakDiff <= PrevPeakDiff
//&& PrevPeakPriceDiff > ThirdPeakPriceDiff && PrevPeakDiff < ThirdPeakDiff
)
{

DrawLine("ZLMACD"+CurrentBar,false,PrevPeakBarsAgo ,PrevPeakPriceDiff,1,LastPeakPriceDiff ,Color.Magenta,DashStyle.Dash,2);



}
}
}

there is a section to detect valleys following this then a close bracket for the if(CurrentBar > 20) statement.
This compiles fine but no indicator plots when loaded
if I change the PrevPeakBarsAgo to a 5 it works???

[NinjaTrader_JoshP]

Please check your Control Center log for errors. From a brief glance, Bars.BarsSinceSession could easily be less than PrevPeakBarDiff which would result in the parameter being negative. This could cause problems as you try to pass it into DrawLine().

Remember if (CurrentBar > 20) does not limit anything on Bars.BarsSinceSession. CurrentBar > 20 is counting from the beginning of the chart. Bars.BarsSinceSession is counting from the session. You may have multiple sessions on a chart.

[clfield]

Thanks for your help. Yes that was exactly the problem, I was getting a negative value for the PrevPeakBarsAgo Value.
Man what alot to learn.
Got it working now

[dadof3and3]

I'm not sure if one of your questions were ever answered. How do you use drawline in the indicator pane, I have no problems using it in the price pane. - David

[NinjaTrader_JoshP]

In Initialize() add the line DrawOnPricePanel = false.

[clfield]

I tried that without results. I think the issue may be in the .Net platform. I sent the indicator to another trader to test. He said he gets a plot on the Indicator panel but not on the price panel. Just the opposite of what I see in my charts.

[NinjaTrader_Bertrand]

This may be the issue clfield, can you reinstall the .NET framework and test this indicator again?

[clfield]

I have removed and reinstalled the .Net Framework 3.5 SP1 twice now. I am wondering if I should only have the 2.0 loaded?