TickCount

[tonynt]

Hello,

with Bars.Tickcount we get the Ticks of currentbar it seems. Cant find the syntax in the helpguide how one get Ticks of Bar[1] and Bar[2] in a minute chart. What would be the syntax/snippet please?

Thank you!
Tony

[NinjaTrader_ChelseaB]

Hello tonynt,

There is no collection for this.

You could create a custom Series<int>, and save this value on each bar.

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

[tonynt]

Hello,

thank you for your reply. It seems I do not understand that doubles series.

For having only the ticks of the Bar[1] I thought I could do it easily with
if(IsFirstTickOfBar)
{trades1 = Bars.TickCount;}

but the result shows always 1.

How can I store the Bars.TickCount of Bar[1] please?

Thank you!
Tony

[NinjaTrader_ChelseaB]

Hello Tony,

In post #2, I have suggested an int (integer) series, Series<int>.

private Series<int> tickCountSeries;

tickCountSeries = new Series<int>(this);

tickCountSeries[0] = Bars.TickCount;

Print(tickCountSeries[0]);

When IsFirstTickOfBar is true, the number of ticks that have been received in that new open bar is 1. This means TickCount will be 1.

Assign a variable to hold TickCount on every tick. When IsFirstTickOfBar is true, don't set it first, instead save it to the series, then set it to 1 after the value is saved.

[tonynt]

Hello,

thank you for your reply. I tried to do but I get the error in log "

20.04.2021 14:14:15	Default	Indicator 'TxVolTickxV21': Error on calling 'OnBarUpdate' method on bar 3: Object reference not set to an instance of an object.

I dont know what I´m doing wrong and how it should be done.

Thank you!
Tony

[eDanny]

In this case you are trying to access a bar that doesn't exist, a bar before bar zero (0), the first bar.

[tonynt]

Hello,
I have in onbarupdate
if(CurrentBars[0]<3)
return;
tickCountSeries[0] = Bars.TickCount;
Print(tickCountSeries[0]);
tickValue=tickCountSeries[0];

What would I need to modify please for having the ticks of Bar[1]

Thank you!
Tony

[NinjaTrader_ChelseaB]

Hello Tony,

What specifically is null?

is tickCountSeries null?

if (tickCountSeries == null)
Print("tickCountSeries is null");
else
Print("tickCountSeries is not null");

[tonynt]

Hello,

how does this help me to get the ticks of the bar[1] please?
I tried to retrieve from an indicator using new Series<int>(this); but I cant find there where this is set to null.

Thank you!
Tony

[NinjaTrader_ChelseaB]

Hello Tony,

Is that in State.DataLoaded?

What do you mean by 'I tried to retrieve from an indicator'?

Is this coming from another script?

Is the originating script is the variable holding the series null?

What prints to the output window?

[tonynt]

Hello,

with retrieve I mean I tried to follow the logic in another indicator and to apply it here. But in the other indicator its series<bool> so from this I cant get it for doubles or ints.

Isn´t there a small example how to work with series of doubles or ints to access the values of Bar[1] or Bar [2].? When I was searching before starting the thread I saw a lot of questions about this topic. So a small sample with the few lines necessary would help a lot of users.

Thank you!
Tony

[NinjaTrader_ChelseaB]

Hello Tony,

Use an Series<int> instead of a Series<bool>.

There is a code sample in the help guide but this focuses on Series<double>, but once you have a full understanding of series objects, it doesn't matter what type is used as long as the type is appropriate for the value that will be saved.

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

[tonynt]

Hello,

thank you for your reply. I could make it running from this snippets in the link. What I do not understand is if Bars.TickCount is counting ticks only when indicator is set to calculate on each tick or does it also count ticks when I run the indicator with calculate on bar close. (I know I have to access the bars differently depending on this but this is not the question). I experienced from my backcoloring which works best for me to debug that it was plotting ok when I forgot to set in parameters to calculate on each tick. So this would be the best solution because of pc ressources.

Does Bars.Tickcount the ticks with calculateonbarclose so that I can have with myIntSeries[0] = Bars.TickCount; theTicks of a minute bar [0] bar [1] bar[2]...?

Thank you!
Tony

[NinjaTrader_ChelseaB]

Hello Tony,

The Bars.TickCount continues to count even when Calculate is OnBarClose. In historical data TickReplay is required.

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

[tonynt]

Hello,

thank you for your reply. So my observation was correct. I could make my indicator running now with cobcfalse and with cobctrue.

Thank you!
Tony