rectangle with color description

Hello,

I'm using a

rectangle

function to draw some color specification on my plots. I'd like to specify what is the meaning of each color. For example lets say there is only

a=1:10; 
plot(a)

on the figure and 3 background colors drawn with the rectangle function

rectangle('Position' [1,1,2,10], 'FaceColor', 'r')
rectangle('Position' [4,1,2,10], 'FaceColor', 'g')
rectangle('Position' [7,1,2,10], 'FaceColor', 'k')

I'd like to mention what is the meaning of r g and k. How can I do that?

Answer 1

[Walter Roberson]

If you record the handles of the rectangle calls then you can legend() those specifically