Special legend for special bar plot

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Daniel
Daniel 2021-3-10
评论： Star Strider 2021-3-11
Here's the code for my bar plot:
ctgroup = reshape(Ct(2:end),5,[]);
ctgroup = [nan,Ct(1),nan;ctgroup];
figure, b = bar(1:6,ctgroup,'FaceColor','flat','HandleVisibility','off'); hold on, b(2).CData(1,:) = [0 0 0];
b(1).CData(2,:) = [0.4940 0.1840 0.5560]; b(1).CData(3,:) = [0.4940 0.1840 0.5560]; b(1).CData(4,:) = [0.4940 0.1840 0.5560];
b(1).CData(5,:) = [0.4940 0.1840 0.5560]; b(1).CData(6,:) = [0.4940 0.1840 0.5560];
b(2).CData(2,:) = [0 0.4470 0.7410]; b(2).CData(3,:) = [0 0.4470 0.7410]; b(2).CData(4,:) = [0 0.4470 0.7410];
b(2).CData(5,:) = [0 0.4470 0.7410]; b(2).CData(6,:) = [0 0.4470 0.7410];
b(3).CData(2,:) = [0.3010 0.7450 0.9330]; b(3).CData(3,:) = [0.3010 0.7450 0.9330]; b(3).CData(4,:) = [0.3010 0.7450 0.9330];
b(3).CData(5,:) = [0.3010 0.7450 0.9330]; b(3).CData(6,:) = [0.3010 0.7450 0.9330];
cases = {'Baseline','cst Pitch','cst TSR','max RR','min C_t','max C_t'};
set(gca,'xticklabels',cases); ax = gca; ax.XTick = 1:6;
ylabel('C_t','fontsize',14)
The plot is attached. I want to add a legend to this plot that shows the first four bar colors (that's each color once, or black, purple, dark blue, light blue), and nothing more. How can it be done?

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采纳的回答

Star Strider
Star Strider 2021-3-11
See if the approach in How to draw bar graph of different colors ? will do what you want.
  5 个评论
显示 3更早的评论
Daniel
Daniel 2021-3-11
编辑：Daniel 2021-3-11
Got it.
figure, hold on
for i = 1:length(ctgroup)
b{i} = bar(i,ctgroup(i,:),'FaceColor','flat');
end
b{1}(1).HandleVisibility = 'off';
b{1}(3).HandleVisibility = 'off';
for i = 1:length(b)
for j = 1:3
b{i}(j).FaceColor = barcols{i,j};
end
end
legend('Baseline','10% Derate','20% Derate','40% Derate')

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