Want to consider only the most recent OnBarUpdate bar event?

[rgaleote]

I placed a lot of prints and logs command in my ninja script and I noticed that the OnBarUpdate event is called lots of times when the strategy is first enabled (initiated). It looks like it looks at historical data, because I placed a print showing date and time, and it loads several bars until it gets to the most recent one.

1st Question: My strategy is running on 30 minutes bars, how many times is the OnBarUpdate called upon initiation (enabling) of my strategy? Whats it the logic behind that, does it call OnBarUpdate for as many historical bars as it can read?

2nd Question: Since OnBarUpdate is called a lot of time upon initiation of the strategy, it might end up entering in one of my conditions and entering the market, how can I make sure my conditions are only executed for recent bars updates in my OnBarUpdate method (for example last minute), knowing that it will be called several times during initiation?

Thank you all,

Rodrigo

[bltdavid]

Use the Historical builtin variable.

It's ok to do all your processing on Historical bars, just don't enter the orders if Historical is true.

When you first open a chart, Ninja has to grab all the data necessary to draw all the bars in your chart. That's obvious, right? While it does this Historical is set to true. As soon as all these bars are drawn and the chart has caught up to the data from the live feed driving the candlesticks, Historical is set to false.

So, essentially, you're seeing real-time data only when Historical is false.

[NinjaTrader_Bertrand]

Rodrigo, what David outline is exatly what's happening, to see better how the calls work just print the Time[0] timestamp alongside with your CurrentBar count and the Historical property. You will see the CurrentBar count showing you exaclty what bar currently is processed by OnBarUpdate().

[rgaleote]

Thank you both David and Bertrand.