MATLAB: Area plot common legend

area plotlegendsimulink

Hi!
I am trying to plot my data with an area plot and I have several subplots for several countries. I just wanted to know how to set a common legend for all subplots describing each color of the plot. Thanks!

Best Answer

Some version of this idea could work: 
dates = 1:5;                                                        % Create Data




G = rand(5, 11);                                                    % Create Data
R = rand(5, 11);                                                    % Create Data
L = rand(5, 11);                                                    % Create Data
country = num2cell('A'+(0:10));                                     % Create Data
figure(1)
for i=1:12
    if i < 12
        subplot(4,3,i)
        area(dates,[G(:,i),R(:,i),L(:,i)],'FaceColor','flat')
        a11 = sprintf('%s',country{i});
        title(a11);
    elseif i == 12
        subplot(4,3,i)
        i = 11;
        area(dates,[G(:,i),R(:,i),L(:,i)],'FaceColor','flat')
        set(gca,'Position',[7.5 1.25 1 1]*0.1)
        set(gca, 'Visible','off')
        legend({'World','Regional','Local'},'Location','best');
    end
end
Run this first. (I am using R2018b.)
Then experiment with your own data to get the result you want.
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