Draw in the chart

[Markines]

Hello,

I am trying to draw a arrow and label in the chart based in the current and previous volume.
For example if the SUM of the last 5 volume is > 300 I would like to draw a arrow in the current candle.

The problem is I don't know how get the volume from the candles. I am trying with the below code only for the last 2 candles.

double x = VOL()[0];
double y = VOL()[1];
double z = x+y;

if (z<300){
Plot0.Set(Close[0]);
}

I will apreciate your support.
Regards.

[NinjaTrader_ZacharyG]

Hello Markines,

Thank you for writing in and welcome to the NinjaTrader Support forum!

To obtain volume from each bar, you'll want to use the Volume collection: https://ninjatrader.com/support/help...7/?volume2.htm

Please, let us know if we may be of further assistance.

[Markines]

The same problem. It does not display anything.
For example
if (Volume[1] > Volume[0]){
Plot0.Set(Close[0]);
}

Plot0 is a Dot and it is not displayed.

[NinjaTrader_ZacharyG]

Hello Markines,

Have you verified that your condition is becoming true?

I would suggest adding a print statement before your if statement to check the values of the two volumes.

if (CurrentBar < 1)
     return;

Print("Volume[0]: " + Time[0] + " " + Volume[0]);
Print("Volume[1]: " + Time[1] + " " + Volume[1]);

[Markines]

That works. The results are correct in the output but still I cannot draw a label or line or whatever in the chart based in the volume

I find out this msg in the output: Error on calling 'OnBarUpdate' method for indicator 'AAA2' on bar 1: Index was outside the bounds of the array

[NinjaTrader_ZacharyG]

Hello Markines,

Please attach your script to your reply.

You can find your script within the Documents\NinjaTrader 7\bin\Custom\Indicator directory on your computer.

[Markines]

There you go.

[NinjaTrader_ZacharyG]

Hello Markines,

Take a look within the Properties region, specifically within the Plot1 property.

The property's get accessor is returning Values[2] on line 82. However, you only have two plots. This should be Values[1] instead.

Each plot that you add in Initialize() will be indexed starting at 0. So, Plot0 is at 0 and Plot1 is at 1.

[Markines]

Thank you, that is works. About the second part? I would like to display a label on the chart. I have no idea how.

[NinjaTrader_ZacharyG]

Hello Markines,

If you wish to draw text or draw a line when the condition occurs, you can use the DrawText() and DrawLine() methods:

https://ninjatrader.com/support/helpGuides/nt7/?drawtext.htm

https://ninjatrader.com/support/helpGuides/nt7/?drawline.htm