Calc on each x´th bar ONLY?!

[FREEN]

I´m trying to figure out how to make NT do calculations on each x'th bar ONLY. I can isolate each 3´rd bar this way;

if (Bars.BarsSinceSession % 3 == 0)

The problem is, NT gives the inbetween dataseries objects a zero value. Is there a way to avoid this?

I realize I could add a second dataseries running at x3 (3 rather than 1 minute), but I´m trying to avoid that for now.

//Fredrik

[NinjaTrader_Bertrand]

Hi Frederik, this is correct if you don't set a value for the bars explicitly - we would advise to set one as other you could run into exceptions accessing dataseries values - working with the added series might be the easier way here.

[FREEN]

Thanks Bertrand! Where do I go wrong in this basic example of multiseries times objects? I would expect this code to show a Close of the primary (TNA, 10 min) series and a Close of the secondary (TNA, 30 min). The only way I get the secondary to show is when primary is set to 30 min. Been playing around without luck.


Add(new Plot(Color.FromKnownColor(KnownColor.Orange), PlotStyle.Line, "Plot0"));
Add(new Plot(Color.FromKnownColor(KnownColor.Green), PlotStyle.Line, "Plot1"));
Overlay = false;

Add("TNA", PeriodType.Minute, 30);
}
protectedoverridevoid OnBarUpdate()
{
Plot0.Set(Closes[0][0]);

if(BarsInProgress == 1)
{
Plot1.Set(Closes[1][0]*1.1); //.1 offset to avoid overlay
}

//Edit - sorry, I ment Close not SMA//

[NinjaTrader_Bertrand]

Hi Frederic, please try setting both plots (BarsArray 0 and 1) from BarsInProgress 0 only.

[FREEN]

Like this?! This gives a blank panel.

protected override void OnBarUpdate()
{

if(BarsInProgress == 0)
{
Plot1.Set(Closes[1][0]*1.1);
Plot0.Set(Closes[0][0]);
}
}


Shouldn´t it be as simple as this, wich gives a blank panel as well;

protected override void OnBarUpdate()
{
Plot1.Set(Closes[1][0]*1.1);
Plot0.Set(Closes[0][0]);
}

Did I miss something really basic here???

[NinjaTrader_Bertrand]

Frederic, the plots are linked to your primary series - please try with a currenbars check for both series in your script -

protected override void OnBarUpdate()
{
if (BarsInProgress == 0 && CurrentBars[0] > BarsRequired && CurrentBars[1] > BarsRequired)
Plot0.Set(Closes[0][0]);
Plot1.Set(Closes[1][0]);
}

[FREEN]

Guess this is what you´re saying, only I have to put it in my words: On the first bar update (10 min), the secondary series (30 min) is looking for the "lacking" 20 minutes?!

if (CurrentBar < 2) return;

Plot0.Set(Closes[0][0]);
Plot1.Set(Closes[1][0]);

Not sure why "if(BarsInProgress == 1)" didn´t prevent that though.

//Fredrik

[NinjaTrader_Bertrand]

Correct Frederic, for multiseries scripts the regular check needs to be extended to all series. You want to plot from the primary series.