How to keep Marker color unchanged

I have following 5-line code ('Ln' indicates nth line in code)

L1       hist(ek_M);
L2       set(get(gca,'child'),'FaceColor','w','EdgeColor','b');
L3       hold on
L4       hist(absek_M)
L5       set(get(gca,'child'),'FaceColor','w','EdgeColor','r');

The problem is that when L5 is executed, the blue edge that was created with the execution of L3 is changed to red. How should I fix it?

Answer 1

[Star Strider]

In L5 you told plot to change it to red:

set(get(gca,'child'),'FaceColor','w','EdgeColor','r');

The fix is obvious:

set(get(gca,'child'),'FaceColor','w','EdgeColor','b');

[User]

In L1 and L4 plot different data, and I am superimposing the two to see how different they are. That is why I am using different colors for the two.

[Star Strider]

The hist function requires an interim step to change the colours of the bar faces and edges. See the hist documentation, specifically Specify Histogram Colors for details.