Plotting Backbrush

[tonynt]

Hello,

I´m experiencing a strange behavior and I´wondering about this because its not a complicated logic but I have no idea why it is not plotting as it should. I have a simple logic to plot a backcolor when volume of bar0 is greater than the bars before. But it does not plot sometimes, eg where I show with the rectangle.

What might be the reason for this please?

In the attached screenshot one can see the chart with a situation where it is not plotting and the simple code beside. Its a 377 tickchart and I have - because of other calculations - added the volumetric 377 ticks.

Edit post: After posting the question I changed the dataseries in the chart from a 377 tickchart to a volumetric 377 tickchart (screenshot plotting_vm) and the plotting is ok now as we can see that the volume of that bar in concern I had marked with the rectangle is not higher than the volume of the bars before.

So the question is not about the code, the question is why the volume of a 377 tick chart is different from the volume of a volumetric 377 tickchart.

Thank you!
Tony

[NinjaTrader_Jim]

Hello tonynt,

Thanks for your post.

I would suggest testing a chart with both a Volumetric 377 tick data series and regular 377 tick data series added with the same parameters.

If the data series parameters are not the same, the data series could be started on different ticks and then the bars will form differently.

Please see my attach screenshots which shows matching volume.

We look forward to assisting.

[tonynt]

Hello,

after posting the question and experience I thought that the reason might be the playback connection when starting somewhere. I will check next week with live data.

Because I have time over holidays where I want to continue and finish my codes I do some backtesting and I can state as follows:

I reload historical data ES 03-21, starting with Dec 16th. I run a chart with Ticks377 and indicator showing if vol0 > vol1 && vol0 > vol2 or vol0 > vol1 or vol0 > vol2. And I run the modified indicator on a volumetric chart with 377 as added dataseries with BIP=1 and I run a modified indicator on a volumetric chart with BIP=0.

99% of time (estimated) all 3 charts show same volume numbers and ">" which I can see easily with backcoloring. But it occurs that there are differences, if so then the both volumetric charts (one with BIP1 and one without added dataseries) show same but both are different from the 377 Tick chart.

You can test it eg for Dec. 16th EST time 6:25:46 and 10:03:42 and 10:05:08. (on this notebook I have CEST time so 12:25 = 6:25 and 16:xx = 10.xx)
eg 10:03:43 both volumetric bars show volume 715 but tickchart shows volume 719
eg 10:05:08 both volumetric bars show volume 585 but tickchart shows volume 581.

I attach the screenshot only to show how one can see it easily from backcoloring. I wrote exactly the date and time as examples from where you can check the numbers.


Best regards
Tony