# how to change order of legends?

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Mr M. 2015년 9월 23일
댓글: LIU 2022년 3월 22일
I dont want to change the order of my plots, but I want to change the order in the legend list. How to do?

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### 답변(11개)

David 2018년 1월 10일
편집: David 2018년 1월 10일
I think Mr. M means the following: In the figure GUI, after one has worked hard to generate a nice figure by combining the outputs of various scripts via copy + paste, how can one change the order of the legend?
In earlier versions of MATLAB, one could achieve this by cutting and repasting traces. They would then reappear at the bottom of the legend. So you would take the trace you want to be second, cut and paste it, then do the same for the third, all the way to the Nth, and then the legend would have the desired order. Now it is no longer possible to do this. The figure somehow remembers the position of the trace before it was cut.
But there is a WORK-AROUND! Simply cut the trace, paste it in onto a different axis of a different figure, then cut that trace and paste it back onto the original figure. This stymies matlab's attempt to remember the order of the trace and puts it onto the bottom of the legend.
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fariborz eshraghi 2021년 12월 5일
That's a wonderful help, thanks.

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Rick 2018년 3월 24일
use this code to swap the order of two plots:
plots=get(gca, 'Children');
legend(plots(2, 1), {'Second line', 'First line'});
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Gopinath Karuppannan 2021년 10월 29일
By using the above code, the order of the legends (only strings) are varying but the colors are not varied.

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Steven Lord 2021년 2월 22일
You can specify the handles in a particular order when you create the legend.
% Sample data
x = 0:360;
y1 = sind(x);
y2 = cosd(x);
y3 = tand(x);
% Set up axes
axis([0 360 -1 1])
hold on
% Create plots
h = gobjects(3, 1);
h(1) = plot(x, y1, 'DisplayName', 'sine');
h(2) = plot(x, y2, 'DisplayName', 'cosine');
h(3) = plot(x, y3, 'DisplayName', 'tangent');
% Create legend -- cosine first then sine and finally tangent
legend(h([2 1 3])) ##### 댓글 수: 0표시숨기기 이전 댓글 수: -1

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Liwei Wang 2019년 1월 25일
Cut+paste is a good idea. But sometimes it won't work because the plots are pretty close to each other. An alternative approach is to change the order of the plots by code:
Here is the copy of the code:
figure
scatter(rand(150,1),rand(150,1))
hold on
fill([0.2 0.5 0.5 0.2],[0.2 0.2 0.5 0.5],'r')
hg = line([0 0.6],[0.6 0]);
set(hg,'LineWidth',12,'Color','g')
h = get(gca,'Children');
set(gca,'Children',[h(3) h(2) h(1)])
Refresh legend then you will see the change.
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Giorgia Calisti 2020년 6월 9일
Exactly what I was looking for!
Thank you

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Ed Rawi 2018년 10월 22일
편집: Ed Rawi 2018년 10월 23일
a = linspace(1,10,10);
b1 = sin(a);
Plot1 = plot(a,b1);
hold on
b2 = cos(a);
Plot2 = plot(a,b2);
hold off
legend([plot2 plot1],{Second,First})
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MCH 2020년 12월 16일
@Ed: This solution works great

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Kris Govertsen 2021년 1월 15일
This is how I was able to change the order of the legend on a figure with multiple subplots of area plots:
Before: I want the order of the legend to follow the order of the colors in the area plot
% a is my figure
% If I type
If I type the following into the command window: a.Children... it returns:
% a.Children
%
% ans =
%
% 5×1 graphics array:
%
% Legend (Grid, VRFB error, VRFB Power, VRFB Energy, LIB error, LIB Power, LIB Energy, Solar, Tidal)
% Axes (Tidal RES)
% Axes (Solar PV RES)
% Axes (VRFB Cost)
% Axes (LIB Cost)
So a.Children(1) is my legend!
% Re-order Legend
lbl = a.Children(1).String; % Retrieve legend labels
numlbl = length(lbl); % Determine number of lables
order = sort(1:1:numlbl,'descend'); % Create array of label numbers in descending order
newlbl = lbl(order); % Create new labels in descending order
legend(findobj(a.Children(2),'Type','area'),newlbl) % Set the legend to follow the new labels hope this helps!
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LIU 2022년 3월 22일
Hi, I have a silimar problem, and guess your method could be useful for me. But I don't know how to apply your code suited to my case. Would you please kindly have a look at my problem and give me a hand? Thank you very much.

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FM 2018년 5월 22일
There is a good solution in the `Update` section of this post on Stack Overflow: http://stackoverflow.com/a/39104494/3230708
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George 2015년 9월 23일
Is this something you are after, the question is not clear
x=magic(2);
plot(x(:,1));
hold
plot(x(:,2),'r');
legend('Data1','Data2');
%blue = Data1
%red=Data2
to change that simple reverse the string order
legend('Data2','Data1');
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@David: you really saved my time !! Thanks
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Kris Govertsen 2021년 1월 15일
This is how I was able to change the order of the legend on a figure with multiple subplots of area plots:
Before: I want the order of the legend to follow the order of the colors in the area plot
% a is my figure
% If I type
If I type the following into the command window: a.Children... it returns:
% a.Children
%
% ans =
%
% 5×1 graphics array:
%
% Legend (Grid, VRFB error, VRFB Power, VRFB Energy, LIB error, LIB Power, LIB Energy, Solar, Tidal)
% Axes (Tidal RES)
% Axes (Solar PV RES)
% Axes (VRFB Cost)
% Axes (LIB Cost)
So a.Children(1) is my legend!
% Re-order Legend
lbl = a.Children(1).String; % Retrieve legend labels
numlbl = length(lbl); % Determine number of lables
order = sort(1:1:numlbl,'descend'); % Create array of label numbers in descending order
newlbl = lbl(order); % Create new labels in descending order
legend(findobj(a.Children(2),'Type','area'),newlbl) % Set the legend to follow the new labels hope this helps!
##### 댓글 수: 0표시숨기기 이전 댓글 수: -1

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Sandeep A S V 2022년 1월 7일
편집: Sandeep A S V 2022년 1월 7일 There is a simple solution using the property inspector GUI.
1.Go to Edit menu on the figure window
2. Select 'current object properties'
3. Select one of the plots in your figure
4. Change the property 'SeriesIndex' in COLOR AND STYLING tab.

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