How to create a legend with multiple colored squares?

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ZimtBolten
ZimtBolten 2020-7-22
评论： ZimtBolten 2020-7-23
Hey,
how can I create a legend for the background of the following plot?
I would like to have a textbox with 3 colored squares (like the background) and the related category.
Thanks for your help!!

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Arthur Roué
Arthur Roué 2020-7-22
% Create an axe
hAxe = axes(...);
% Get your patches handles
hGreen = patch(hAxe, ...);
hYellow = patch(hAxe, ...);
hRed = patch(hAxe, ...);
% Add legend
legend(hAxe, [hGreen hYellow hRed], {'Green', 'Yellow', 'Red'})
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Arthur Roué
Arthur Roué 2020-7-22
% Create an axe
hAxe = axes(..);
% Get your patches handles
hGreen = patch(hAxe, ..);
hYellow = patch(hAxe, ..);
hRed = patch(hAxe, ..);
% Get your line handle
hData = plot(hAxe, ..)
% Add legend
legend(hAxe, [hGreen hYellow hRed, hData], {'Green', 'Yellow', 'Red', 'Data'}, ...
'Location', 'northeast')

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