pivate DataSeries vs. double

[max-td]

What is more efficient to use if i need ie. 4 historic values of an indicator for my strategy :

should ia create a pivate DataSeries like this

private DataSeries myECO2;
myECO2 = new DataSeries(this);
myRSX.Set(ECO2(21,45,8,6)[0]);

or

should i use this style of coding to get my four needed values
- just right in the OnBarUpdate()-section :

double eco01 = (ECO2(21,45,8,6)[1]);
double eco02 = (ECO2(21,45,8,6)[2]);
double eco03 = (ECO2(21,45,8,6)[3]);
double eco04 = (ECO2(21,45,8,6)[4]);

Thanks for an idea
max-td

[NinjaTrader_Bertrand]

Go with the doubles if you don't need more history for the ECO or if you don't need to 'feed' into another method accepting only dataseries inputs.

[max-td]

ok thanks for the info