Accessing chart time value in code

[arbuthnot]

Hi Ninjas All

I'm working on something where a parameter depends on the time value of a chart.

Is there a way in code of accessing this value (whether it be 20 mins, 55 mins, 1729 seconds or any time value) so I can use it within an indicator?

Thanks in advance for any advice.

Added on edit:

I think I've found a way of doing this:

Time[0].Subtract(Time[1]).TotalSeconds;

gives the time in seconds between each bar.

Trouble is, I'm experiencing this problem: I've added the following in OnBarUpdate:

if (CurrentBar < 60)
        		return;

int BarValueSeconds = (int) Time[0].Subtract(Time[1]).TotalSeconds; // ***
int BarValueMinutes = (int) BarValueSeconds / 60;
	
Print(BarValueMinutes);

But in the Output Window, I'm getting the correct values but then an error message as follows

5
5
5
Error on calling 'OnBarUpdate' method for indicator 'BarNumbersCounting02c' on bar 1436: Object reference not set to an instance of an object.

Even if I set line *** to:

int BarValueSeconds = (int) Time[[B][COLOR="Blue"]1[/COLOR][/B]].Subtract(Time[[B][COLOR="blue"]2[/COLOR][/B]]).TotalSeconds;

I still have the problem.

Any advice much appreciated and I'm wondering if there may be a more direct way of achieving this.

[NinjaTrader_PatrickH]

Hello arbuthnot,

Thank you for your post.

In testing your code I did not find the same error. Could you provide the instrument, bar type and interval tested on?

I look forward to your response.

[arbuthnot]

Thanks very much, Patrick, for getting back to me on this at the weekend.

Those lines of code are incorporated within a 'bigger' indicator. When used independently, there's no problem. When used within the other code, the problem sometimes recurs.

However, I've found I can get the information I need using the BarsPeriod.Value method, which solves the problem almost completely, so the situation as I initially described in this thread is no longer relevant.

But I do have this question: looking through Help on BarsPeriod, I couldn't find a way within NinjaScript of distinguishing between minute bars and second bars. It would help in my code if this were possible.

I've a feeling this might not be possible but thanks for advising me on this.

Cheers.

[koganam]

Thanks very much, Patrick, for getting back to me on this at the weekend.

Those lines of code are incorporated within a 'bigger' indicator. When used independently, there's no problem. When used within the other code, the problem sometimes recurs.

However, I've found I can get the information I need using the BarsPeriod.Value method, which solves the problem almost completely, so the situation as I initially described in this thread is no longer relevant.

But I do have this question: looking through Help on BarsPeriod, I couldn't find a way within NinjaScript of distinguishing between minute bars and second bars. It would help in my code if this were possible.

I've a feeling this might not be possible but thanks for advising me on this.

Cheers.

BarsPeriod.Id ?

[arbuthnot]

Much obliged to you for your suggestion, Koganam.

Looking through Help, I did indeed try BarsPeriod.Id, but I obviously didn't do it right.

What I'd like in the code would be on this basis:

If ( Bar Type = Minutes )

{ ...actions... }

If ( Bar Type = Seconds )

{ ...other actions... }

According to Help, PeriodType.Minute is

Only relevant for Kagi, LineBreak, and PointAndFigure Bars objects

but if there is a workaround, I'd appreciate any advice as to how to do this.

Cheers.

[koganam]

Much obliged to you for your suggestion, Koganam.

Looking through Help, I did indeed try BarsPeriod.Id, but I obviously didn't do it right.

What I'd like in the code would be on this basis:

If ( Bar Type = Minutes )

{ ...actions... }

If ( Bar Type = Seconds )

{ ...other actions... }

According to Help, PeriodType.Minute is



but if there is a workaround, I'd appreciate any advice as to how to do this.

Cheers.

The example is right on the description page.

if (BarsPeriod.Id == PeriodType.Second) {...}

[arbuthnot]

The example is right on the description page.

if (BarsPeriod.Id == PeriodType.Second) {...}

As always, Koganam, you've come up trumps!

I did this simple test:

if (BarsPeriod.Id == PeriodType.Second) BarColor = Color.Blue;
if (BarsPeriod.Id == PeriodType.Minute) BarColor = Color.Red;

and it worked.

The trouble is, the Help guide does not give enough examples and is sometimes misleading. You do get the impression that this will only work for Kagi, etc. I now know better!

I really hope they improve Help in NT8.

Much obliged, Koganam.