Function to return number of trading days

[janseun]

Is there a function that can return the number of trading days between two dates?

What I really would like is something that returns the number of daily bars between today's date, and some date in the past.

Any help appreciated!

[NinjaTrader_ChelseaB]

Hello janseun,

I'm not aware of any method that does this.

You would need to create custom logic to accomplish this. A loop (which you could do in a custom method) that loops through the previous bars until the date is found (or stops after finding the first bar with a date before the selected date) would be the likely logic needed.

If you would like we can submit a feature request for the NinjaTrader Development to consider adding this method to a future version of NinjaTrader.
Would you like to submit a feature request?

[janseun]

Chelsea

Thanks for the reply. I see your logic, but the problem I run into is that I don't have all those bars loaded.

I have a multi-timeframe series, and want to be able to extrapolate the values of trendlines that date back up to a year or so. However, I don't want to have to load a year's worth of data in my main strategy.

Any other solution you can think of would be welcome!
Jan

[NinjaTrader_ChelseaB]

Hello Jan,

You could use a sessionIterator, loop through each day, and use IsTradingDayDefined() or IsInSession() to see if its a trading day.

http://ninjatrader.com/support/helpGuides/nt8/en-us/sessioniterator.htm

You could also use a BarsRequest to call the data out of sync.

http://ninjatrader.com/support/helpGuides/nt8/en-us/barsrequest.htm