Referencing Previous Indicator values

[JamesF]

Is there a way to reference a previous indicator value?

For example,

EMA(5)[0] - EMA(5)[20]

This will not produce a result. Does anybody know a way to get around this or to do this?

Thanks.

[NinjaTrader_Bertrand]

JamesF, this should work - please make sure to take consideration of this tip at your OnBarUpdate start - http://www.ninjatrader-support2.com/...ead.php?t=3170

[JamesF]

So say I was trying to achieve some thing like this....


number = EMA(5)[0] - EMA(5)[lookbackperiod]

plot0 = "number";


would I just insert a snippit in the on bar update above it?

{
if (EMA[0] > EMA[Math.Min(CurrentBar, lookbackperiod)])
// Do something
}

[NinjaTrader_Bertrand]

I'm not sure what you're trying to achieve, if 'lookbarperiod' should be a user defined input parameter you can change on the fly to adjust, please take a look at this tip on how to create those in your scripts - http://www.ninjatrader-support2.com/...ead.php?t=5782

[JamesF]

I have an indicator that adds up all the times the direction of an ma changes. I want it to only display the number of changes in the last 20 bars or so, the "lookbackperiod" variable. So, I am wondering how I can obtain the number of changes by subtracting the number of changes at [20] or [lookbackperiod] from the number at [0].

Hence,

localvaribale = Indicator(5)[0] - Indicator(5)[20];
plot0= "localvariable";

I need to be able to reference the number that the indicator displays at [20] to do this. Is this possible?

[NinjaTrader_Bertrand]

Then you would need to work with dataseries objects that hold the historical indicator values - http://www.ninjatrader-support.com/H...iesObject.html

http://www.ninjatrader-support2.com/vb/showthread.php?t=7299