What's wrong with "IsFirstTickOfBar"?

[jshapen]

Current TF - 5 minute
TickReplay - On

...
else if (State == State.Configure)
{
   AddDataSeries(Data.BarsPeriodType.[B]Minute, 5[/B]);
}
...

protected override void OnMarketData(MarketDataEventArgs e)
        {
            if (IsFirstTickOfBar && BarsInProgress==0)
                Print(e.Time+" - "+BarsInProgress);
        }

IsFirstTickOfBar always is False if the loaded timeframe is equal to the current timeframe

[NinjaTrader_ChelseaB]

Hello jshapen,

IsFirstTickOfBar is used in OnBarUpdate(). When the tick triggering OnBarUpdate() is the first tick of the bar, this property will be true, for every series added to the script.

Below is a link to the help guide.

https://ninjatrader.com/support/helpGuides/nt8/isfirsttickofbar.htm

When used outside of OnBarUpdate(), its possible you might miss the value being true as the value will be updating based on OnBarUpdate() not OnMarketUpdate().

[jshapen]

If in our example, replace

 
 AddDataSeries(Data.BarsPeriodType.Minute, [B]5[/B]);

with

 
 AddDataSeries(Data.BarsPeriodType.Minute,[B] 15[/B]);

then everything will be fine. IsFirstTickOfBar works as expected.

[NinjaTrader_ChelseaB]

Hello jshapen,

Are you expecting the IsFirstTickOfBar to not be true on the first tick of a bar when using a 15 minute bar type when printing from OnBarUpdate()?

Below is a video that demonstrates IsFirstTickOfBar works fine in OnBarUpdate() even if the added series bar type and interval matches the primary series.
https://drive.google.com/file/d/1dmB...w?usp=drivesdk