Test if a custom method is FALSE for a certain number of bars

[ArmKnuckle]

Is there a concise way to check if a custom method is FALSE for the previous XX bars in a multi-time frame strategy?

I am going create a parameter to alter the amount of bars tested (XX), as needed.

Thanks in advance!

[NinjaTrader_ChelseaB]

Hello ArmKnuckle,

You could run the method for each bar and save the true or false value to a bool series.

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

Alternatively, you could write the method to accept a bars ago value and use this for any series indexes used in the method.

[ArmKnuckle]

Great. Thanks!

[ArmKnuckle]

I have created the Series<T> as you instructed. It works partially, and I need some help.

If I use the Series<T> bool from the current bar, I get functioning results:

if ([COLOR=#008000][B]CodeLongOK[0][/B][/COLOR] && SavedBar != CurrentBars[0])
{
  SavedBar = CurrentBars[0];
  Print (Instrument.FullName + " "+Times[0][AZ+0].ToString("MM/dd/yy  HH:mm:ss")+"  "+CodeLongOK[1]);
}

The printout references that correct information from the Series<T> bool from one bar ago.


When I try to use the Series<T> bool from one bar ago to generate the print statement:

if ([COLOR=#FF0000][B]CodeLongOK[1][/B][/COLOR] && SavedBar != CurrentBars[0])
{
  SavedBar = CurrentBars[0];
  Print (Instrument.FullName + "  "+Times[0][AZ+0].ToString("MM/dd/yy  HH:mm:ss")+"  "+CodeLongOK[1]);
}

I get the following error message:
"Error on calling 'OnBarUpdate' method on bar 0: You are accessing an index with a value that is invalid since it is out-of-range. I.E. accessing a series [barsAgo] with a value of 5 when there are only 4 bars on the chart."

The correct bool data from one bar ago exists in the logic and is available to print.

How can I use the Series<T> bool from previous bars in an "if ()" statement to print, iterate counters, etc?

Thanks for the help.

[NinjaTrader_ChelseaB]

Hello ArmKnuckle,

Is CurrentBar greater than 1 when attempting to call 1 bar ago?

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

https://ninjatrader.com/support/forum/forum/ninjatrader-8/indicator-development/1046200-indicator-that-calculate-in-different-chartime?p=1048513#post1048513

[koganam]

 
 [B][B][COLOR=#0000FF]if (CodeLongOK.Count > 1) [/COLOR]Print (Instrument.FullName + "  "+Times[0][AZ+0].ToString("MM/dd/yy  HH:mm:ss")+"  "+CodeLongOK[1]);[/B][/B]

You could also use IsValidDataPoint() as a check filter. ref: https://ninjatrader.com/support/help...ddatapoint.htm