Problems with Cumulative Delta Indicator

[Rainmakersg]

Hi Jim,

I would appreciate it if you could assist me further. The volumetric delta in your indicator ( barsType.Volumes[CurrentBar].BarDelta ) is converted into a string and drawn as a text below the bars.

I wish to create a variable say VolumetricDelta, whereby VolumetricDelta[0] = delta for current bar and VolumetricDelta[1] = delta for previous bar and so forth.

Can you advise how I can do this?

Thank so much

[NinjaTrader_Jim]

Hello Rainmakersg,

It sounds like you want to create a Series<double> to hold BarDelta for each bar in the data series. You can create a Series<double> called VolumetricDelta, and then assign VolumetricDelta[0] the value returned from barsType.Volumes[CurrentBar].BarDelta.

Series<T> - https://ninjatrader.com/support/help...t8/seriest.htm

You can also make this Series public if you want to allow a hosting script to read it. A related example can be found below.

SampleBoolSeries - https://ninjatrader.com/support/help...alues_that.htm

We look forward to assisting.

[Rainmakersg]

Hi Jim,

I used Addplot(), so VolumetricDelta is automatically converted to a Series<double>. I inserted VolumetricDelta[0] and VolumetricDelta[1] into an IF-ELSE statement so that arrows are drawn if certain conditions are met. So far, I am only able to get things working when I insert one VolumetricDelta[1] into one set of IF-ELSE statement. When I insert another VolumetricDelta[1] into one more set of IF-ELSE statement, nothing happens.

I am trying to troubleshoot, so I created the Series<double> from scratch as you have suggested. But I got stuck at setting values for VolumetricDelta[0].

I tried to assign directly:
VolumetricDelta[0]= barsType.Volumes[CurrentBar].BarDelta
Didn't work

Then I tried to covert from long to double:
VolumetricDelta[0]= Convert.ToDouble(barsType.Volumes[CurrentBar].BarDelta)
Also didn't work

Then I tried to covert from long to string to double:
VolumetricDelta[0]= Convert.ToDouble(barsType.Volumes[CurrentBar].BarDelta.ToString())
Also didn't work

Kindly assist.

Secondly, is the [CurrentBar] in barsType.Volumes[CurrentBar].BarDelta giving the problem I am experiencing with the multiple VolumetricDelta[1] I am trying to call?

Thanks.

[NinjaTrader_Jim]

Hello Rainmakersg,

I suggest creating a very simple indicator that assigns a value to a plot so you can confirm that you can properly add a plot and that you can properly assign plot values.

I also suggest using the Log tab of the Control Center to look for any errors that you might be receiving. You can add debugging prints to identify the specific line of code that is generating the error. Always do this when something "doesn't work." You will need to confirm that the code assigning the plot value is in fact being reached, and you will need to ensure your script is not hitting any errors. Debugging prints can be used to confirm your code is reaching that line. (Place a print beside the line of code that is assigning the plot value, in the same code block as that plot value assignment.)

Debugging Tips - https://ninjatrader.com/support/help...script_cod.htm

Once you can verify that you can create and assigns plot value in a simple test indicator, please test it in this script, and ensure you are assigning the plot value in BarsInProgress == 0.

Please also note that if you have added a plot, you will need to remove and re-add the script because State.SetDefaults will not be processed after reloading the script with F5.

If you have further questions on errors, please copy them by selecting them in the Log tab of the Control Center and pasting them in your reply.

We look forward to assisting.

[Rainmakersg]

Hi Jim,

Thanks so much for your assistance. I caught the bug.