Accessing other indicators

[Gregorio]

I want to plot lines using Pivots (included indicator for NT8). When I write the following lines it gives me the error message. : CS0122: 'Member' is inaccessible due to protection level
What do I need to do?



R2 = Pivots(PivotRange.Daily, HLCCalculationMode.DailyBars, 0, 0, 0, 100).r2;
R1 = Pivots(PivotRange.Daily, HLCCalculationMode.DailyBars, 0, 0, 0, 100).r1;
PP = Pivots(PivotRange.Daily, HLCCalculationMode.DailyBars, 0, 0, 0, 100).pp;
S1 = Pivots(PivotRange.Daily, HLCCalculationMode.DailyBars, 0, 0, 0, 100).s1;
S2 = Pivots(PivotRange.Daily, HLCCalculationMode.DailyBars, 0, 0, 0, 100).s2;

[NinjaTrader_ChelseaB]

Hello Gregorio,

The plots returned by the Pivots indicator are data series. You would need to select a bars ago index for the collection.

Try:

double R2 = Pivots(PivotRange.Daily, HLCCalculationMode.DailyBars, 0, 0, 0, 100).R2[0];

[Gregorio]

Hello Gregorio,

The plots returned by the Pivots indicator are data series. You would need to select a bars ago index for the collection.

Try:

double R2 = Pivots(PivotRange.Daily, HLCCalculationMode.DailyBars, 0, 0, 0, 100).R2[0];

Same error! :-(

[NinjaTrader_ChelseaB]

Gregorio,

Are you certain that is the code you are testing and that is the code you are getting an error for?

I have copied and pasted this exact code into a test script and have compiled without error and have run the script and this has printed to the Output Window without error.

Attached is the script that I have tested this in.

[Gregorio]

You are right, there was a mistake in my version in my line! Thanks for the correction! :-)

[Gregorio]

The NinjaScript gives no error but the log still gives me an error when i try to use this double and plot it on my indicator. I am in NT8. Can you give my a sample indicator for that too.
Thanks!

[NinjaTrader_ChelseaB]

Hello Gregorio,

For future reference, I am including a link to the NinjaTrader 8 section of the forums.

http://ninjatrader.com/support/forum/forumdisplay.php?f=59

Attached is the same example script created for NinjaTrader 8 Beta.

One thing to keep in mind, is that the Pivots indicator adds a secondary series to the script. With NinjaTrader 8, any script that calls an indicator with a secondary series, also has to have that secondary series added to itself.
(Meaning if a strategy calls an indicator that has a secondary series added, the strategy also needs that same secondary series added)

[Gregorio]

Meaning that: if my indicator needs intraday bars I can forgot about this project of mine?
Pivots need this: AddDataSeries(BarsPeriodType.Day, 1);

[NinjaTrader_ChelseaB]

Hello Gregorio,

I'm not understanding your inquiry.

When you mention " if my indicator needs intra-day bars I can forgot about this project of mine?", can you clarify what this means?

If an indicator is being called that adds a secondary series that is intra-day, the calling indicator or strategy also needs that same secondary series added.

[Gregorio]

I mean, my indicator, where i call Pivots from, is an indicator using intra-day bars. But when I include this line: " AddDataSeries(BarsPeriodType.Day, 1); " that Pivots indicator needs for working, as you said, then my indicator stops plotting what it has plotted so far. Meaning those two things are not working together.

Or, i just need to learn more about scripting! :-)

[NinjaTrader_ChelseaB]

Hello Gregorio,

When you add a data series to the script, this causes OnBarUpdate to process for that added series.

For the logic to be the same, you would need to add a condition to only process during the primary series (BarsInProgress 0). I have demonstrated this in the example I have provided to you.

May I confirm you have done the same in your script?

[Gregorio]

Thanks for the help! That has done the trick.

I really should learn more about this stuff. What I know so far I learnt by reading the indicator scripts line by line, trying to understand them. And tweaking them to my needs. :-)