Legend with multiple colors for a single bar plot
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I have a single bar plot and i have managed to color the bars in 3 different colors. When I try to create a legend, it does only show one color. How can i add the two other colors to the legend when i only have one bar plot?
My code looks like this:
figure(2)
bar_h = bar(T_orderO);
title('Tid brugt på hvert spørgsmål')
xlabel('Spørgsmålsnummer')
ylabel('Tid (s)')
set(gca,'XLim',[0 numel(O)+1])
set(gca,'xticklabel',O)
set(gca,'XTick',1:1:numel(O))
set(gca,'YLim',[0 max(T_orderO)*1.1])
%set(gca,'YTick',0:max(T_orderO)+1)
hbar_child = get(bar_h, 'Children');
set(hbar_child,'CData',T_orderO);
set(hbar_child,'CDataMapping','direct');
index = 1:numel((R_orderO));
for i = 1:length(R_orderO)
if R_orderO(i) == -1
index(i) = 1;
elseif R_orderO(i) == 1
index(i) = 2;
else
index(i) = 3;
end
end
mycolor=[1 0 0; 0 1 0; 1 1 1];
colormap(mycolor);
set(hbar_child, 'CData',index);
采纳的回答
Michael Haderlein
2014-5-8
Hi Kenneth,
I don't know if that's what you'd like to have, but I have used "invisible" plots to generate "artificial" legend entries. Just plot only one data point and set it to NaN:
figure, hold all
plot(1,nan,'k-') %legend entry 1
plot(1,nan,'ko') %legend entry 2
legend('Experiment','Simulation')
%actual data plots
plot(1:4,rand(1,4),'b-')
plot(1:4,rand(1,4),'bo')
plot(1:4,rand(1,4)+1,'r-')
plot(1:4,rand(1,4)+1,'ro')
plot(1:4,rand(1,4)+2,'g-')
plot(1:4,rand(1,4)+2,'go')
plot(1:4,rand(1,4)+3,'c-')
plot(1:4,rand(1,4)+3,'co')
That should be possible with bar plots, too.
Michael
2 个评论
Kenneth
2014-5-9
Giuseppe Degan Di Dieco
2021-5-15
Dear Michael,
your solution it's still useful in 2021!
Thanks for your help.
Best!
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