How to determine number of bars back for a given time in the past

[tomg1970]

Hi..

If I use a non-time based bars like Volume or Range bars, how can I determine how many bars ago a certain time was? For example, if the current time is 5:07am, and I am trying to determine how many bars ago was 1:00am, I know I could loop through Time[n] where n starts with 1 and increments by 1 until I reach or pass before 1am, but I didn't know if their was a built in function that already does this. Is there a built in function for this? Something like n = BarsAgoFromTime("1:00am"); Or is using Time[n] loop the only way?

Thanks in advance,
Tom

[NinjaTrader_JessicaP]

Hello Tom, and thank you for your question. This situation is what the GetBar() method was designed for. I am posting an excerpt from the help guide.

// Calculate the bars ago value for the 9 AM bar for the current day
int barsAgo = CurrentBar - Bars.GetBar(new DateTime(2015,10,22,10,21,59));

Please let us know if there are any other ways we can help.

[tomg1970]

Perfect Jessica! Thanks!

I tried finding in the HTML Help online, but I could not find this. Do you have a PDF version of the Help Guide? Or even better Win Help version? The HTML version is not easy to search.

Any suggestion on good third party programming guides or books for NT8?

Thanks again.. tom

[NinjaTrader_JessicaP]

While I can not advise on programming and developing books for NT8, we have a PDF version of the help guide behind this link

http://ninjatrader.com/Downloads/NinjaTraderVersion7HelpGuide.pdf

Please let us know if there are any other ways we can help.