Want to create an indicator and have no idea where to start?

May 29th, 2011, 01:42 AM

forrestang

I'm going back to "Plan A" of trying to reference these indicators from my own script.

Ok, so the goal is to figure out how to get all the Vertical Positions AND colors of the oscilators I am using, and draw items based on those things.

So I figured out the vertical position. The colors cannot be referenced by ninja directly. I was messing around with some print commands in various parts of the ORIGINAL indicators..... I stuck a print command in where I think the various colors might be occuring, and I printed arrows on the chart.

Here you can see the red arrows track the color change of the green/black line in the 2nd pane. The red tracks it perfectly, the green was supposed to be there when the line is green, but it is a bit off.

I don't know how to do it yet, but I wonder if I can take and create a function that I can call WITHIN the original code to make these things easily available to be used outside in MY script I am creating?

Getting closer.

May 29th, 2011, 02:37 AM

forrestang

..........Here you can see the red arrows track the color change of the green/black line in the 2nd pane. The red tracks it perfectly, the green was supposed to be there when the line is green, but it is a bit off.

Got it!

Got the ERG(that black/green osc) to reflect when the color changes for UP and DOWN now. So I've got an idea how to track it. I still need to find one more item, and that is the tracking of the color of those price bars you see. That's either up or down.

Then it will just be organizing the data in an easy to read format, and finding a way to make it available OUTSIDE of these original indicators.

May 29th, 2011, 04:07 PM

Hi Forrestang,

If your ProfTest Code still had this:

Code

Overlay = true; 
 
or

if (ProfTradeErg > 10){
DrawArrowUp("arrow"+CurrentBar.ToString(), true, Time[0], Low[0]-2, Color.Green);
}

you ought to add this [CODE*TickSize][/CODE] so it will look like this:

Code

if (ProfTradeErg > 10){
DrawArrowUp("arrow"+CurrentBar.ToString(), true, Time[0], Low[0]-2*TickSize, Color.Green);
}

Not sure if you prefer the arrows on the price panel or not, since the horizontal lines from the Initialize section shouldn't be there if you do.

Also, you might want to create your

Code


double ProfStrengthHist = ERG_Str1().HIST[0]; //Access to Strength Histo Position
double ProfTradeErg = ERG_Trade().ERG[0]; //Access to Trading Erg Position
double ProfTradeHist = ERG_Trade().HIST[0];

as dataseries so that you can reference the prior bar's state. There are ways to use loops to emulate a dataseries (which is over my head). Otherwise, need to find otherways to draw arrows for only when the condition changes (if that's what you prefer to see rather than several continuous bars with the arrow below.

Keep up the good work.

Kirk

May 29th, 2011, 07:01 PM

Thanks Zeller, I had just put the arrows in there so that I could verify that I could get the script to output something when the indicator was doing something. So it was just a flag sort of while I was trying to understand it.

About the data series, that is what I am working on now, so that I can get all the values into my study.

May 30th, 2011, 12:20 AM

forrestang

....... I still need to find one more item, and that is the tracking of the color of those price bars you see. That's either up or down.

Then it will just be organizing the data in an easy to read format, and finding a way to make it available OUTSIDE of these original indicators.

Believe I found the portion of the script for the color bars. You can see on the chart, I through some arrows on there to visually see it.

Ok, now onto making this into a data series somehow available OUTSIDE the original indicators.

May 30th, 2011, 12:26 AM

forrestang

Ok, now onto making this into a data series somehow available OUTSIDE the original indicators.

Can anyone tell me how to create a data series, that will be available to be referenced by any study?

I want to create a data series INSIDE the original indicator, so that I can easily grab it from another study. How should it be declared?

May 30th, 2011, 12:04 PM

forrestang

Can anyone tell me how to create a data series, that will be available to be referenced by any study?

I want to create a data series INSIDE the original indicator, so that I can easily grab it from another study. How should it be declared?

Indicator: Exposing indicator values that are not plots - [AUTOLINK]NinjaTrader[/AUTOLINK] Support Forum

Maybe this will shed some light on it?

May 30th, 2011, 12:43 PM

forrestang

Indicator: Exposing indicator values that are not plots - [AUTOLINK]NinjaTrader[/AUTOLINK] Support Forum

Maybe this will shed some light on it?

I must still be doing something wrong. I installed that sample study, and tried to get access to the data series in that study from another random study, and I get an error that says:

"NinjaTrader.Indicator.SampleBoolSeries.bullIndication is inaccessible due to its protection level"

I tried to reference it this way:

Code

 Print(SampleBoolSeries().bullIndication[0]);

May 30th, 2011, 01:10 PM

forrestang

I must still be doing something wrong. I installed that sample study, and tried to get access to the data series in that study from another random study, and I get an error that says:

"NinjaTrader.Indicator.SampleBoolSeries.bullIndication is inaccessible due to its protection level"

I tried to reference it this way:

Code

 Print(SampleBoolSeries().bullIndication[0]);

Ahah!

To get at that data as a public property, it has to be capitalized.

May 30th, 2011, 03:14 PM

Ok, I have access to 6 of the 7 variables I need to base my logic on.

I didn't realize it, but the first 6 are "exposed variables" put into data series that are easily available. The 7th variable is the color of the bars, I may have to actually create inside the original indicator?

Here are some pictures, and the arrows are just there to show that I am tracking the state change of each indicator whether it is a color or the level.

Want to create an indicator and have no idea where to start?

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Want to create an indicator and have no idea where to start?