How to hold a position for half hour?

[Jenny]

I would like to hold a position for half hour at least half hour, how to do that?

Thanks

[NinjaTrader_Ray]

Hi Jenny,

If you are working with the Condition Builder please review the information at the following link regarding time comparisons - http://www.ninjatrader-support.com/H...mparisons.html

If you are coding it in the NinjaScript Editor please see the following reference sample - http://www.ninjatrader-support.com/v...ead.php?t=3226

You can also work with the BarsSinceEntry() method to determine how many bars have elapsed.

[Jenny]

Thanks for your fast respone.
Take care

[Jenny]

"BarsSinceEntry()" is a very good, do you have others "BarsSince...." , like
BarsSinceCrossAbove(SMA(5), SMA(10))?
Thanks

[NinjaTrader_Ray]

You could try MRO.

http://www.ninjatrader-support.com/H...urenceMRO.html

[Jenny]

MRO is very cool, but the first one works, the second one doesn't work.
LowBar1 =MRO(delegate {return (CrossBelow(SMA(5), SMA(10), 1));},1, 1440) return some number, but
HighBar1 =MRO(delegate {return (CrossBelow(SMA(5), SMA(10), 1));},2, 1440); return nothing, even not a "-1".

Would you please tell me why?

Thanks

[NinjaTrader_Ray]

If you mean that it does not work in that it only returns a value of -1, then likely the condition is never met. You will likely spend some time debugging to understand what is happening.

If it does not work in terms of throwing exception (error message in the log tab of the Control Center window) then let me know.

Here is some information to help you debug. http://www.ninjatrader-support.com/v...ead.php?t=3418

[Jenny]

I already use debug, it return nothing, even not "-1". If never met the condition, it should return "-1". And I can see the condition is met by the chart. Within 1440 bar, SMA(5) Cross over SMA(10) hundreds times! Do you think there is a bug some where?

Thanks

[NinjaTrader_Josh]

Are you getting any errors in your logs?

[Jenny]

No error either. Can you do some test in your side?
Thanks

[NinjaTrader_Josh]

Sure Jenny.

[NinjaTrader_Josh]

After some tests there is nothing wrong with the MRO. Please check out the reference sample I've attached. Try running it on your end. You should see two plots like how it looks in the attached image.

I suspect it to be a bug in your code somewhere since there seems to be no issue with this simple-as-possible indicator using MRO.

To install the reference sample please follow these steps:

1. Download the file contained in this thread to your PC desktop
2. From the Control Center window, select the menu File > Utilities > Import NinjaScript
3. Select the downloaded file

[Jenny]

Thanks for your sample. It looks work in the indicator, but how come when I try to use it in my Strategy, it doesn't work.:
HighBar1 =MRO(delegate {return (CrossBelow(SMA(5), SMA(10), 1));},2, 1440);

Take care

[NinjaTrader_Josh]

In the indicator I used your exact line of code. You are going to need to debug your code to see where it is failing. I suspect you probably placed the line within an if statement that is never executed. Thus causing your HighBar1 to never be set.