Can I label all similar colored lines in one figure with subplots?

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gsourop 2019-11-4

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https://ww2.mathworks.cn/matlabcentral/answers/489161-can-i-label-all-similar-colored-lines-in-one-figure-with-subplots

Hi everyone,

I would ilke to label the lines that are getting the data from the same column with a common name, rather than naming the lines per subplot.

In the following example, I would like, for examle, to give a common name to all yellow lines as 'yellow', rather than naming the yellow line on each subplot.

rng(1)
for i = 1:5
   A{i} = randn(10,2); 
end
for i = 1:5
B1(:,i) = [A{i}(:,1)]; 
B2(:,i) = [A{i}(:,2)]; 
end
figure;
subplot(2,2,1)
filename = plot(B1)
hold on
subplot(2,2,2)
filename = plot(B2)
hold on