Price panel histogram

[eDanny]

Ok, so what I'm looking to do is plot a histogram between two moving averages or similar objects. The problem is the bars always extend up from zero instead of the lower object. Is this even possible in C# or Ninja Script?

[roonius]

you have to override plot method

or simply use something like DrawLine() between plot1[0] and plot2[0]


plot1.Set(EMA(Close, 8));
plot2.Set(EMA(Close, 21));

Color histo = (plot1[0] > plot2[0] ? Color.Green : Color.Red);
int width = 2
DrawLine(CurrentBar.ToString(), 0, plot1[0], 0, plot2[0], histo, DashStyle.Solid, width);

Hope it helps

[NinjaTrader_Bertrand]

Hi eDanny,

You can also take a look at DrawRegion() for your task - http://www.ninjatrader-support.com/H...rawRegion.html

[eDanny]

Thanks roonius but I think that is more line objects than I would want on a chart. And Bertrand, a shaded background isn't what I was looking for. I would like to be able to change colors of each histo bar according to other conditions, not just because one MA is over another.

[NinjaTrader_Bertrand]

Hi eDanny,
Ok, how about adding a new Plot (PlotStyle.Bars) and set this to the higher MA value? You could then color this according to your conditions.

[eDanny]

That is the problem, using bars plots a histogram from zero all they way up to the MA. Nasty! There is no way to make the bottom at the lower MA, or any value other than zero.

[NinjaTrader_JoshP]

eDanny,

All three available options have already been discussed in this thread. You need to evaluate and pick one or the other. Using plots or using Draw() have their downsides. If you are unhappy with them only thing you can do is just override the Plot() method. That would require advanced C# that we cannot offer support for if you decide to go down that route.

[eDanny]

Took me five minutes to whip one up using DrawLine but like I said it really uses alot more resources. Could we add this to the wish list for NT7?

[NinjaTrader_JoshP]

Thank you for your suggestion. I will add it to the list of future considerations.

[eDanny]

Resource question. Does DrawRegion() use less resources than DrawLine() in the above scenario? They both draw something each bar so does the region drawn each bar act the same as a line, only fatter?

[NinjaTrader_Ray]

Resource question. Does DrawRegion() use less resources than DrawLine() in the above scenario? They both draw something each bar so does the region drawn each bar act the same as a line, only fatter?

I think DrawLine() would be more efficient method but can't confirm at this time.

[eDanny]

Ray, thanks. If you can find out, please, let me know so I can use the best method.