Accessing Total Levels in a Volumetric Bar

[AgriTrdr]

Hi,

I'm trying to access the total levels in a Volumetric Bar by but it's giving me an error.

int priceLevels = barData.GetPriceLevelCount(CurrentBar);

Also, would I be able to access the Ask and previous Bid by the following:

double askVolCurrent = barData.GetAskVolumeForPrice(CurrentBar, i);

double bidVolBelow = barData.GetBidVolumeForPrice(CurrentBar, i - 1);​

Below is the entire code:

long currentBarLong = CurrentBar;

var barData = barsType.Volumes[currentBarLong];

    if (barData == null)

        return;


            int priceLevels = barData.GetPriceLevelCount(CurrentBar);


            for (int i = 1; i < priceLevels; i++)

            {

                double askVolCurrent = barData.GetAskVolumeForPrice(CurrentBar, i);

                double bidVolBelow = barData.GetBidVolumeForPrice(CurrentBar, i - 1);




                if (bidVolBelow > 0 && askVolCurrent / bidVolBelow >= ImbalanceRatio)

                {

                    Draw.Text(this, $"BuyImb_{CurrentBar}_{i}", "⬆", 0, barData.GetPriceForPriceLevel(CurrentBar, i), Brushes.Lime);

                }




                double bidVolCurrent = barData.GetBidVolumeForPrice(CurrentBar, i);

                double askVolAbove = barData.GetAskVolumeForPrice(CurrentBar, i - 1);




                if (askVolAbove > 0 && bidVolCurrent / askVolAbove >= ImbalanceRatio)

                {

                    Draw.Text(this, $"SellImb_{CurrentBar}_{i}", "⬇", 0, barData.GetPriceForPriceLevel(CurrentBar, i), Brushes.Red);

                }

            }
​

[NinjaTrader_Jesse]

Hello AgriTrdr,

What error are you running into? We would need that info in order to assist here.

To get previous values you need to subtract the number of bars from CurrentBar, CurrentBar is the index of the bar being used in your code.

[AgriTrdr]

Hi,

It's a CS1061 error.. Volumetric Bars does not contain a definition for GetPriceLevelCount

Thanks

[NinjaTrader_Jesse]

Hello AgriTrdr,

That error is correct, that is not a method. If you are using external tools like AI we do not suggest that as they often provide invalid code. You can see how to use volumetric bars here:

https://developer.ninjatrader.com/docs/desktop/order_flow_volumetric_bars

[AgriTrdr]

Ok understood.

So would this be a good way to access the levels in a bar or is there another way?

int priceLevels = barsType.Volumes[CurrentBar];

[NinjaTrader_Jesse]

Hello AgriTrdr,

CurrentBar is the bar that is processing in OnBarUpdate, that will increment as the bars progress. That is the index which is being used for the volumetric data. For example if you wanted 1 bars ago it would be CurrentBar - 1.

The Volumes collection has various properties which you can see in the following link. The code you provided is not enough, you need to use one of the properties.

https://developer.ninjatrader.com/docs/desktop/order_flow_volumetric_bars