Why DataSeries??

[savekad]

Hey.

I've created an indicator which calculates some values (duh...).

Instead of plotting it using Add() and instantiate DataSeries class, I have created a List<int> and used DrawX() methods etc.

Am I missing something? I mean, it works great so why going DS from the first place? Is my approach prone to errors?

[Harry]

-> instead of a List<int> you can create an IntSeries
-> I also use List<int>, if I have fewer values than bars on the chart to store
-> if you have 1 datapoint per bar, it is convenient to use DataSeries, IntSeries or BoolSeries
-> a DataSeries can be used as an input series for another indicator, your List<int> can certainly not be used for that purpose

[savekad]

I see.

1. So if I want to expose some double values to a strategy what should I do?

2. My indicator needs collections that have a controlled number of elements so using the Series type collections will be a problem cuz if I got it right - they always sync their length with the number of bars loaded on the chart.

[NinjaTrader_AdamP]

savekad,

I am happy to assist you.

Here is a reference sample on exposing values that are not plots : http://www.ninjatrader.com/support/f...ead.php?t=4991

As far as your second question there, could you elaborate? Why do you need fixed size series here?

[savekad]

My indicator generates values and saves them to a List<double>. I need to know what index number each element carries so if I will use the Ninja alternative for a generic list (Series), the list length will keep changing by itself as it sync itself with the amount of bars on chart and the new ones.

[NinjaTrader_AdamP]

savekad,

Unfortunately that wouldn't be supported code, but Lists can be used in NinjaTrader as it uses the .NET framework.

[savekad]

OK. It does sound a bit vague without a concrete example. I'll post again when I'll stumble across an actual problem.