mixed OnBarClose & OnEveryTick while backesting

[utilizator]

Hello,
I need to make a code to backtest pairs of Entry & Exit in a specific way, and I cannot find a solution for it.

Namely:
* enter at bar close (if the price reaches P), then
* exit at P+2pts, but intrabar, at whatever tick the price reaches P+2pts

I am using two bar series of the same data, a time series of 1-minute, and a tick-by-tick one. The second is used to Enter/Exit at any tick of the bar forming, not just at the close of the bar.

While in State.Historical, the entry at the close of the bar can be achieved by setting

Calculate=Calculate.OnBarClose
and
EnterLong(1/*2nd bar series*/,quantity,name) when BarsInProgress == 0 , i.e. time series of 1-minute

Then, I switch to
Calculate=Calculate.OnEachTick
to check at every subsequent tick if price becomes P+2pts, to ExitLong(...)

The thing is, it may happen that at those ticks forming the bar, the price to reach again P and an EnterLong(...) to be triggered, before the close of the bar.
I need all EnterLong(...) to be submitted at the close of the bar only. Again, I am in State.Historical at all times.

Any suggestion will be much appreciated, thank you.

[NinjaTrader_ChrisL]

Hello. Thanks for the post.

We do not recommend switching your calculation mode while your strategy is running as it is prone to error in your strategy.

If you want to calculate your exit condition intrabar, but only enter on the close of the bar you will have to use a special technique that is described here in this reference sample:

https://ninjatrader.com/support/forum/showthread.php?t=19387

You can use IsFirstTickOfBar to know when the first tick comes in on a new bar to check for the entry condition.

Ex:

protected override void OnBarUpdate()
		{
			if(CurrentBars[0] < 1) return;
			if(BarsInProgress == 0)
			{
				if(IsFirstTickOfBar)
				{
					Print("FirstTickOfBar");
				}
			}
			
			if(BarsInProgress == 1)
			{
				Print("Tick Series");
			}
		}

You will want to turn on Tick Replay to get the correct sequence of ticks in Historical mode. For more information on Tick Replay see this help guide link on developing for Tick Replay.

https://ninjatrader.com/support/helpGuides/nt8/en-us/?developing_for__tick_replay.htm

https://ninjatrader.com/support/help...ttickofbar.htm - IsFirstTickOfBar

Please let us know if you have any questions.

[utilizator]

Hello Chris,
Thank you for your solution. It applies to real-time though, while I'm looking for historical ...

Best,
Adrian

[NinjaTrader_ChrisL]

Hello. Thanks for the reply.

This will work in historical mode as well. You have a 1 tick series to fill orders and you have tick replay on, this is the closest simulation to real time you can get.

Please review the historical backfill algorithm used in NinjaTrader to see how your orders will be filled historically using the 1 Tick data series.

https://ninjatrader.com/support/helpGuides/nt8/en-us/?historical_order_backfill_logic.htm

Please let us know if you have any questions.