Multiple time frames - Double count

[marcusplexus]

Hi,

I am developing a multiple time frame indicator which uses a 5 minutes and 30 minutes time frame. The script is applied to a 5 minute chart, and I use Add(PeriodType.Minute,30); for the 30 minutes time frame.

I noticed while troubleshooting that every 30 minutes the OnBarUpdate() section is being parsed twice: once for the 5 minute bar that just completed, and then another time for the 30 minutes bar that just completed. Add another time frame using Add(PeriodType.Minute,60); and the parsing is done three times every hour.

While printing the values of Stochastics %K on the debuging window I noticed that the first parse gives a correct %K value for the 5 minute time frame. On 2nd parse, an invalid %K that comes from I don't know where is calculated again. This generates bad signal (arrows up or down) on my chart.

The question: Is there a way to specify, in the OnBarUpdate() section that I want the script to exit ( return ) whenever the OnBarUpdate is applied to the 30 minute bar?

Thanks in advance.

-mp

[NinjaTrader_Bertrand]

mp, yes you can control this with the BarsInProgress property in NinjaScript -

http://www.ninjatrader.com/support/helpGuides/nt7/barsinprogress.htm

So for your case: if (BarsInProgress == 1) return; // 1 being the first added series, so your 30 min.

So updates to the primary 5 min and tertiary 60 min would still come through then.

[marcusplexus]

Yes! That fixed it. Many thanks!