Using "Times"

[Pete77]

I have a one minute bar chart with a 45 minute underlying bar chart. I wish to call an alert five minutes before the 45 minute bar closes. My logic:


“When previous 45 min bar closes I can set 45minbarStartTime to Times[1][0]
Then, when Times[0][0] == 45minbarStart time + 40 minutes
Alert”


How to code adding 40 minutes to 45min start time or is this even possible?
Thanks

[koganam]

I have a one minute bar chart with a 45 minute underlying bar chart. I wish to call an alert five minutes before the 45 minute bar closes. My logic:


“When previous 45 min bar closes I can set 45minbarStartTime to Times[1][0]
Then, when Times[0][0] == 45minbarStart time + 40 minutes
Alert”


How to code adding 40 minutes to 45min start time or is this even possible?
Thanks

"45minbarStart time + 40 minutes" is written as 45minbarStartTime.AddMinutes(40)

ref: https://msdn.microsoft.com/en-us/lib...v=vs.110).aspx

[NinjaTrader_ChelseaB]

Hello Pete77,

koganam is correct. The Time collection holds a DateTime object for each bar. Any DateTime methods can be used.

https://msdn.microsoft.com/en-us/library/system.datetime(v=vs.110).aspx

http://ninjatrader.com/support/helpGuides/nt7/time.htm

[Pete77]

Thank you, I could not find an example for that.

One last problem: I am trying to create a variable by which I can carry the time over to another indicator.
"startTime = Times[1][0].AddMinutes(40)" Any help with syntax for that?
I know how to make the variable public in Properties.

[NinjaTrader_ChelseaB]

Hello Pete77,

This depends on what you mean. If you are calling the indicator and getting that property, then just make it an input that is properly serialized.

http://ninjatrader.com/support/forum/showpost.php?p=124724

If you mean how to check an internal value of a running indicator's variable, you would likely need a static class/variable which is not supported for NinjaTrader 7.

[Pete77]

Thanks for the help. I think I am out of my league.
I have split my project into three small indicators which depend on each other for the purpose of calculating at bar close, one on very tick on another a close of a 45 minute underlying bar and a third at the close of a my basic one minute bar chart. This gets very complicated.
Is there any way to have parts of one indicator close at different times?
And if a one minute chart has an underlying 45 minute bar chart with Initialize() set at “CalculateAt at Close = true”, does it close at one minute, or 45 minute” Thanks again

[NinjaTrader_ChelseaB]

Hello Pete77,

Yes, you can Add() to data series to a script and have different intervals (or even different instruments) also trigger OnBarUpdate when that series bar closes.
Add() - http://ninjatrader.com/support/helpGuides/nt7/add3.htm

When CalculateOnBarClose is false and the script is processing tick by tick (in real-time data only) it is possible to trigger actions after a close of a bar using a condition that checks for FirstTickOfBar to be true.
FirstTickOfBar - http://ninjatrader.com/support/helpG...ttickofbar.htm
CalculateOnBarClose - http://ninjatrader.com/support/helpG...onbarclose.htm

What you are describing, using 3 separate indicators running separately that need to communicate is not supported for NinjaTrader 7, however, using a static variable it would be possible.

[Pete77]

Could you lead me to an example of CalculateOnBarClose at different intervals?
The example "SampleEnterOnceExitEveryTick_NT7.zip (6.4 KB, 858 views) seems not to help me.

[NinjaTrader_ChelseaB]

Hello Pete77,

The intra-bar granularity reference sample is a good example of adding a secondary series and checking for BarsInProgress.

http://ninjatrader.com/support/forum/showthread.php?t=6652

[Pete77]

I am back to my original problem using Times.

I wish add a condition whereby alert will trigger when current time is 5 minutes from the close a 45 minute bar. (Along with other conditions)

"Times[1][0].AddMinutes(40)" prints correctly for this coming time in my 45 minute bar.

if(DateTime.Now.Ticks > Times[1][0].AddMinutes(40)) { } is as close as I have been
able to get, but it generates the error:

"Operator '>' cannot be applied to operands of type 'long' and 'System Date Time'"

Can you give me any guidance on this?

[NinjaTrader_ChelseaB]

Hello Pete77,

Is Calculate set to true?

Do you have a 5 minute series added to the script?

Are you doing the check when BarsInProgress is 1?

Are you checking that Times[1][0].AddMinutes(-40) is equal to Times[0][0]?

[Pete77]

This is a 3 min chart with 15 min secondary series.
Calculate is set to false.
I am checking when BarsInProgress == 1 also when 0..
When using: "if(Time[0][0] > Times[1][0].AddMinutes(40))" I get the following error message:

"Cannot apply indexing with [] to an expression of type 'System DateTime"

[NinjaTrader_ChelseaB]

Hello Pete77,

That would be correct.

Time does not hold an index for all series.

You must use Times (plural).

http://ninjatrader.com/support/helpGuides/nt7/times.htm

What would be accomplished by checking this in BarsInProgress 0 when the primary series is processing?