Error Message

[Trader17]

Hello Trader17,

No this would not be in line with how the sample is coded. The BarsAgo you have used would be correct for any indicator that uses BarsAgo but this is not an indicator and has specific indexes used instead. I mentioned in the last post that you won't be using a BarsAgo here but you are instead using the CurrentBar.

Here is the example again on how to do 1 BarsAgo when using the CurrentBar:

CurrentBar - 1

You will also need to check that there is enough data before trying that:

if(CurrentBar < 1) return;

The result would look just like the help guide sample except you have added minus one to the CurrentBar where it is used:

Print("Delta for current bar: " + barsType.Volumes[CurrentBar].BarDelta);
Print("Delta for prior bar: " + barsType.Volumes[CurrentBar[B] - 1[/B]].BarDelta);

I look forward to being of further assistance.

Thank you. So if I am comparing the Deltas on the last 5 bars I would start off with:

if(CurrentBar < 5) return;

Correct? Even though why would it be required if there are enough bars to start on the chart? Or would it not be able to see there are not enough bars to calculate yet?

Thank you.

[Trader17]

I am trying to use the Bar Delta comparison and I get an error message. How do I compare 2 Bar Deltas in Ninja Script?
Thank you.

[NinjaTrader_Jesse]

Hello Trader17,

Have you copied and pasted the entire example from the help guide? The error would indicate you have missed part of the sample. I can see you do not have the variable barsType declared which is in the sample along with the error handling:

if (Bars == null)
return;


NinjaTrader.NinjaScript.BarsTypes.VolumetricBarsType [B]barsType [/B]= Bars.BarsSeries.BarsType as     
NinjaTrader.NinjaScript.BarsTypes.VolumetricBarsType;

if (barsType == null)
return;

You can also know this as we are using C# and the error presented lets us know why you are seeing this error.

The name barsType does not exist

would mean specifically what it says, you have used the word and case "barsType" and that does not exist here. That would indicate a missing variable declaration if it is a variable you are trying to use.


I look forward to being of further assistance.

[Trader17]

I copied and pasted this I made in Builder but could not compile it because of the error. So I add the missing code just above the Buy and Sell rules?
Thank you.

[Trader17]

Thank you very much. I did not get any error message any more. Also why the green vertical line on the left margin?
Thank you.

[NinjaTrader_Jesse]

Hello Trader17,

Thank you for the update.

As for the green lines, I am unsure offhand what this is called. It appears that if you are using the light skin, you will see orange for an edit that is unsaved/compiled and green for a change that is saved/compiled. I will need to get further clarification on this.




I look forward to being of further assistance.

[Trader17]

Thank you vry much!! Ninja Trader Rocks!!!