how to check values in indicator

[junkone]

I have 2 indicator plots which start showing values when they are above 0.
how do I detect the change in indicator value from strategy?
for eg. when I look at the databox, the indicator shows n/a for the values that I did not plot.
when I plot the values, I can see the values in the databox.
so how do I compare if prev indicator value ==n/a and current indicator value>=0 from my strategy?

this is what I did but I don't see the logic getting executed.

   }
					if(PullbackBounce(20).UP[0]>=0 && !PullbackBounce(20).UP.IsValidDataPoint(1))
					{
						Print(Bars.GetTime(1).ToString() +   "Change in direction from short to long" );
					}
					
					if(PullbackBounce(20).Down[0]<=0 && !PullbackBounce(20).Down.IsValidDataPoint(1))
					{
						Print(Bars.GetTime(1).ToString() +   "Change in direction from long to short" );
					}

[NinjaTrader_ChelseaB]

Hello junkone,

For values to appear in the DataBox, these must be set to a plot.

Your code does not include the setting of a plot value.

Is this code incomplete?

Do you have plots in your script?

Are you actually referring to the Output Window and not the DataBox?

Using <Series>.IsValidDataPoint() will let you know if a plot or series has a value.

Below is a publicly available link to the help guide.

https://ninjatrader.com/support/helpGuides/nt8/en-us/isvaliddatapoint.htm