Moving averages not plotting correctly when crossed

[JS999]

I have a question, as I have seen this repeatedly... perhaps I am doing something wrong. I have coded a very simple MA crossover, where I want to show 2 plots on the screen... a long MA, and a short MA that changes color whenever it crosses the longer one.

I initialize 3 plots like this:

Add(new Plot(Color.FromKnownColor(KnownColor.Yellow), PlotStyle.Line, "LongMA"));
Add(new Plot(Color.FromKnownColor(KnownColor.Lime), PlotStyle.Line, "ShortMAUp"));
Add(new Plot(Color.FromKnownColor(KnownColor.Red), PlotStyle.Line, "ShortMADown"));


Then I have the following code in OnBarUpdate():

if (EMA(shortMAPeriod)[0] >= EMA(longMAPeriod)[0])
ShortMAUp.Set(EMA(shortMAPeriod)[0]);
else
ShortMADown.Set(EMA(shortMAPeriod)[0]);

Whenever I plot this, it works fine except that for a few pixels right around the crossover point, nothing is plotted (i.e. I just get blank space).

This also happens on osciallator plots where I am checking the slope and wanting to plot a different color depending on whether it is going up/down... whenever the slope changes to be near zero, the same effect occurs where nothing is plotted.

Am I missing something or is this a bug?

[NinjaTrader_JoshP]

Not sure what you are referring to exactly. Could you please post a screenshot? Thanks.

[JS999]

Not sure what you are referring to exactly. Could you please post a screenshot? Thanks.

Sure, here it is... I have circled the problem areas....

[JS999]

Another example...

[NinjaTrader_JoshP]

JS999,

Please see this reference sample for how to connect the different plots together. http://www.ninjatrader-support2.com/...ead.php?t=3227

[JS999]

JS999,

Please see this reference sample for how to connect the different plots together. http://www.ninjatrader-support2.com/...ead.php?t=3227

Which reference sample? Did you forget to paste something? Never mind... I see it now.

[JS999]

That sort of worked, but not completely... I added a line to connect the averages as follows:

ShortMAUp.Set(1,EMA(shortMAPeriod)[1]);
ShortMAUp.Set(EMA(shortMAPeriod)[0]);

and

ShortMADown.Set(1,EMA(shortMAPeriod)[1]);
ShortMADown.Set(EMA(shortMAPeriod)[0]);

Yet while it doesn't show the empty space, now sometimes it plots the wrong color just on the other side of the long MA. I have attached an example. Any ideas?

[NinjaTrader_JoshP]

Not sure what you mean. The screenshot looks to be continuous to me. When using multi-colored plots it is possible to have it colored on the other end because it needs to connect the data points. Sometimes the color change criteria didn't happen on one of the points exactly and that can lead to coloring of that may appear to be off since it needs to color the whole segment.

[JS999]

Not sure what you mean. The screenshot looks to be continuous to me. When using multi-colored plots it is possible to have it colored on the other end because it needs to connect the data points. Sometimes the color change criteria didn't happen on one of the points exactly and that can lead to coloring of that may appear to be off since it needs to color the whole segment.

Alright... but you can see how that could be a bit annoying... is this something that could be changed in version 7 so that the colors exactly match up visually with the crossover point? Just a suggestion... thanks for the help...

[NinjaTrader_JoshP]

Thank you for the suggestion. It is on our list of future considerations.