How does the indexing of stacked bars work?

Hello,

I am trying to understand how the indexing of stacked bars work. I have a plot with 2 stacked bars but am only able to color the stacks of them the same.

When I use for example b(1,i).FaceColor = [0 0 0] it works but just like I said before I can only color both stacked bars stacks the same. If I use b(2,i) = [ 0 0 0] ( I thought that the first number refers to the number of stacked bars, while the i refers to the individual stacks) I get the following error:

Unrecognized property 'FaceColor' for class 'matlab.graphics.GraphicsPlaceholder'.

Answer 1

[Adam Danz]

You can set individual colors by using an rgb matrix, one color for each bar within the current stack. The FaceColor should be set to 'flat' as well.

Here's a demo:

a = randi(20,4,2);            %4 bars, 2 stacks
H=bar(a, 'stacked');

%Set the bottom stack to random colors
colr = rand(4,3); 
H(1).FaceColor = 'Flat'; 
H(1).CData = colr;

%Set the top stack to random colors
colr = rand(4,3); 
H(2).FaceColor = 'Flat'; 
H(2).CData = colr;

[Burak Soydas]

Hello,

this helped me, thank you very much.