Changing Colors

[tquinn]

I seem to be Thick Headed on this topic. I want an indicator, say MACD, where the Diff, plotted as bars, changes colors.

The idea is

if this bar > bar[1] then make (this bar) green else make it red

I've tried placing the Plots[2].Min=Diff[1] in the OnBarUpdate() method, thinking this would set the thresholds by comparing to the previous bar value.

It compiles and plots, but it still changes all history bars based on the current evaluation. I don't want to change the history, just the Current bar.

I know there is something simple I'm missing , just need some guidance I guess.

[NinjaTrader_Ray]

A plot in NinjaScript can only have one color at any given moment. They can not have dual colors.

Therefore, to implement what you want, you have to have two plots, and only show the plot that you want based on the condition you specify.

The attached sample indicator does exactly what you want. This indicator uses the DataSeries.Reset() method which is not working in NT6 Beta 5 right now.
Ray

[NinjaTrader_Ray]

The sample indicator will generate the following output.

[tquinn]

OK, thanks, I'll study this this tonight. Maybe my thick head can get softened up a bit.

[subterfuge]

Hi.
I tried to import Mdiff but i got the following error.

''archive was not exported by ninjatrader or its contents have been manipulated.''

any help?
thanks

[NinjaTrader_Tim]

Hi subterfuge,

Thank you for your post.

Unfortunately, it seems that was exported using a much older version of NinjaTrader, and cannot be imported using the current version.

However, here is a page from out Help Guide that demonstrates the same concept in a tutorial.
http://www.ninjatrader-support.com/HelpGuideV6/helpguide.html?Overview25