Question about indicator modification

[Aleks1]

Can anyone give advice how to modify standard @SUM indicator? I need to add new plots, so that indicator values below 0 were colored one color and values above 0 colored with another color. That's it. I looked at the code but didn't understood how to do that.

[NinjaTrader_Bertrand]

Hi Aleks1, welcome to our forums - you can just make yourself a copy of the study in the editor and then work calls to PlotColors in that would allow to change the color used conditionally.

http://www.ninjatrader.com/support/helpGuides/nt7/plotcolors.htm?zoom_highlightsub=PlotColors

[Aleks1]

Hi, Bertrand
I tried to write something like that in SUM indicator and now tried code from your example with SMA indicator but in both cases I receive CS0103 error. Name "names of added plots here" is out of current context. What am I missing?

[NinjaTrader_Bertrand]

Aleks1, would you mind attaching the file you have so far so we could take a look?

[Aleks1]

I successfully compiled the indicator but when I add it to the chart and press OK - Ninja crashes.
Attached it.

[NinjaTrader_Bertrand]

I would expect so, you created a reference to the script itself basically. Just call in the regular SUM method for the values and it should be better.

SUM(Period)