IDATASERIES ...how use it

[turbofib]

private IDataSeries demo;

protectedoverridevoid Initialize()

{
Indicator = new DataSeries(this);
Indicator = RSI(14,1);
}

protectedoverridevoid OnBarUpdate()

Print(Indicator[0]);

OUTPUT :
0
0
0
0



there is an error....it give me always 0



Is correct o there is error...?

thanks you

[NinjaTrader_CalH]

Turbifib,

This is expected as the IDataSeries was not meant to be written for this kind of use.

IDataSeries boils down to being able to create a method that can in turn use the IDataSeries as a parameter.

For what you are trying to do above I would try this sample snippet -

private DataSeries demo;

protected override void Initialize()

{
      demo = new DataSeries(this);
}

protected override void OnBarUpdate()
{
      demo.Set(RSI(14,1)[0]);
      Print(demo[0]);
}

[turbofib]

I know that code already...


I wanted to use an example as formulated below using idataseries

[NinjaTrader_CalH]

Turbofib,

protected override void OnBarUpdate()
        {
		Print(RsiReturn(Close));
			
        }
		
private double RsiReturn(IDataSeries pricedata)
	{
		return RSI(14,1)[0];
	}

[turbofib]

i try it...but OUTPUT is the same

0
0
0
0
0
0

[NinjaTrader_CalH]

What does your updated script look like?

[turbofib]

now is..ok!! thanks you...

but if I wanted to write past 5 boxes ..
How should I do?

ex:


Print(RsiReturn(Close)[5]);

it give me error: is not possible to indicize with[] an expressione double type

[NinjaTrader_CalH]

You will need to change the return in order for that to work

return RSI(14,1)[5];

[turbofib]

I asked about IDdataSeries because I need to store a indicator ... and access to past values without incurring the limitation of the maximum bars look back 256 (not setting it to infinity) ...

If i write the following code :

private DataSeries indicator;

protectedoverridevoid Initialize()
{
Indicator = new DataSeries(this);
Indicator = RSI(14,1);
}
protectedoverridevoid OnBarUpdate()
Print(Indicator[300]);==========> it not correct because max bar back =256

How do I get around this?

(in some indicators I 've see Idataseries use for solve problem .. but did not work properly)

[NinjaTrader_CalH]

Turbofib,

If you are going to be using more the 256 you will need to use the MaximumBarsLookBack.Infinite.
There is no other way around this, just ensure that you limit your amount of days to load to the minimum that you want.

[koganam]

I asked about IDdataSeries because I need to store a indicator ... and access to past values without incurring the limitation of the maximum bars look back 256 (not setting it to infinity) ...

If i write the following code :

private DataSeries indicator;

protectedoverridevoid Initialize()
{
Indicator = new DataSeries(this);
Indicator = RSI(14,1);
}
protectedoverridevoid OnBarUpdate()
Print(Indicator[300]);==========> it not correct because max bar back =256

How do I get around this?

(in some indicators I 've see Idataseries use for solve problem .. but did not work properly)

That is because you have not quite clarified your idea. What you want to do is to use a named instance of an indicator, in which case your code has many things that are not kosher.

Try this instead:

private RSI TurboFibIndicator;

protected override void Initialize()
{
TurboFibIndicator = RSI(14,1);
}

You can now access your named instance to do whatever you want, such as, using your example:

protected override void OnBarUpdate()
Print(TurboFibIndicator[300]);

[turbofib]

i can't use
private RSI TurboFibIndicator;

because i must use :
public enum typedemo
{
MACD,
RSI,
..
..
}
switch (Method) {
case typedemo.RSI:
LinkRSI();
Indicator = RSI(Period,1); =======> i'm interested to this..stored value
break;


I want to Plot a point in the indicator :

Ex.:

Plot a point on RSI...350 bar ago

Error:

Error on calling 'OnBarUpdate' method for indicator 'GIL' on bar 0: barsAgo needed to be between 0 and 255 but was 350

[koganam]

i can't use
private RSI TurboFibIndicator;

because i must use :
public enum typedemo
{
MACD,
RSI,
..
..
}
switch (Method) {
case typedemo.RSI:
LinkRSI();
Indicator = RSI(Period,1); =======> i'm interested to this..stored value
break;


I want to Plot a point in the indicator :

Ex.:

Plot a point on RSI...350 bar ago

Error:

Error on calling 'OnBarUpdate' method for indicator 'GIL' on bar 0: barsAgo needed to be between 0 and 255 but was 350

Your enum has nothing to do with how to use a datastore to manipulate code. Your enum is supposedly a selector: the TurboFibIndicator object is a class.

[turbofib]

Ok .... I try to do as you say

But...i ask you.......is not proper use DataSeries?

[koganam]

Ok .... I try to do as you say

But...i ask you.......is not proper use DataSeries?

I am using an IDataSeries object: TurboFibIndicator is a named instance of the RSI.If you need to branch to different ones, then declare multiple indicators, each of the correct type and use them. in your branches.