IsFirstTickOfBar on Range Chart - getting called before time?

[mav8rick]

Hi,

I added a 60 min data series to my indicator using the standard (I then add the indicator to a 5-Range Chart) :

case State.Configure:

AddDataSeries(BarsPeriodType.Minute, 60);

And in OnBarUpdate, I put in the following:

if(BarsInProgress == 1) //based on hour bar
{

if(IsFirstTickOfBar) //hour bar just closed
{

Print(String.Format("CurrentBar: {0} Time[0]: {1}", CurrentBar, Time[0].ToString("MM/dd/yyyy hh:mm:ss.fff tt")));
Print(String.Format("Current time: {0}",DateTime.Now.ToString("MM/dd/yyyy hh:mm:ss.fff tt")));
Print("---");
...

However, it seems like IsFirstTickOfBar is getting called before it's time:

CurrentBar: 62 Time[0]: 08/11/2021 11:00:00.000 AM
Current time: 08/11/2021 01:02:08.587 PM
---
CurrentBar: 63 Time[0]: 08/11/2021 12:00:00.000 PM
Current time: 08/11/2021 01:02:08.625 PM
---
CurrentBar: 64 Time[0]: 08/11/2021 01:00:00.000 PM
Current time: 08/11/2021 01:02:08.659 PM
---
CurrentBar: 65 Time[0]: 08/11/2021 02:00:00.000 PM
Current time: 08/11/2021 01:02:08.661 PM

Why would the first tick of bar be called for the 2:00 PM bar when it's only 01:02 PM? I guess I missed the lesson on dealing with Range chart - can I get some pointers on this?
Thanks!

[NinjaTrader_ChelseaB]

Hello mav8rick,

This would be expected. The first tick would be when the bar opens. For a 60 minute bar, this would be at the beginning of the hour. The first tick of a bar should not be near the close of the bar unless no data was received while that bar was open.

If the bar closes at 2:00 PM, then the bar opened at 1:00 PM, so the first tick should be just after 1:00 PM..

Also IsFirstTickOfBar requires using Calculate.OnEachTick (or Calculate.OnPriceChange). Further in historical this would require TickReplay.
https://ninjatrader.com/support/foru...377#post773377

[mav8rick]

Thanks Chelsea - realized that after checking the values...