How to Reference a Previous Ask

[kdixon]

Hi,

I'm pretty new to NT, and I was having a hard time trying to reference a previous ask price.

For instance, I would like to know the difference between the ask price 20 bars ago versus the current ask price.

Can someone assist me with this?

[NinjaTrader_CalH]

Hello kdixon,

Thank you for your note.

You would need to add an underlying data series that is using ask price so that you can compare the ask price of now to 20 bars ago.

In Initialize() -

Add("ES 06-15", PeriodType.Minute, 1, MarketDataType.Ask);

http://www.ninjatrader.com/support/h..._ask_serie.htm


Let me know if I can be of further assistance.

[kdixon]

Okay excellent.

So if I wanted to know the difference between an ask price 20 bars ago and the current ask price I could write something like:

Math.Abs(Add("ES 06-15", PeriodType.Minute, 20, MarketDataType.Ask) - GetCurrentAsk());

Would that be correct?

[NinjaTrader_CalH]

kdixon,

No, the Add() will add an underlying data series in which you can access the data for this like using Close[0] but will use Closes[1][0] instead. This will be used in the Initialize() method.

The Ask data will build like a candlestick just like your primary bar series.

http://www.ninjatrader.com/support/h...nstruments.htm