Start and Display AutoTrendLine From Indicator

[BAltman]

I am writing a custom indicator and I would like to start the AutoTrendLine indicator (that I've downloaded from the forum) from inside my custom indicator. I am starting it in the Initialize() routine using:

Indicator ind = AutoTrendLine(true, 1,5);

This compiles and runs without errors, but the trend line does not appear on the chart.

What am I missing ?

[NinjaTrader_ChelseaB]

Hello BAltman,

Thanks for your post.

You will need to create a plot and set the value of this plot to the value of SMA(period)[0].

For example:

in Initialize():
Add(new Plot(Color.Blue, "myPlot"));

in OnBarUpdate():
myPlot.Set(SMA(19)[0]);

Below is a link to the help guide on the Add() method for indicators.
http://www.ninjatrader.com/support/h...es/nt7/add.htm


The alternative is to use a strategy and add the indicator which will allow you to add this without creating a custom plot.

See the help guide on the Add() method for strategies.
http://www.ninjatrader.com/support/h...s/nt7/add2.htm

[BAltman]

Hi ChelseaB,

The example code you provided uses the SMA indicator, which is an indicator that plots a data series.

The AutoTrendLine indicator I want to "add" draws rays and is not set up to return a value based on the current bar.

Is there another way to get this to work (short of adding the AutoTrendLine code directly into my custom indicator) ?

[NinjaTrader_ChelseaB]

Hi BAltman,

The options here would be to copy the code in to your script, or to use a strategy instead of an indicator.

Or you could always just add the second indicator to your chart manually.