![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/605375/image.png)
How to insert a unique legend with subplot?
26 Ansichten (letzte 30 Tage)
Ältere Kommentare anzeigen
Armando MAROZZI
am 3 Mai 2021
Kommentiert: Armando MAROZZI
am 3 Mai 2021
I have the following plot:
y1 = [2,2,2,2];
y2 = [2.15, 2.115, 2.08, 2.07];
y3 = [0.08532, 0.071189, 0.05391, 0.06123];
y11 = [2,2,2,2];
y22 = [2.19,2.13,2.09,2.07];
y33= [0.1134, 0.1233,0.1122,0.1202];
y111 = [2,2,2,2];
y222 = [2.19,2.15,2.09,2.1];
y333= [0.1834, 0.1433,0.1622,0.1802];
x = [1:4];
h = figure;
subplot(1,3,1)
plot(x,y1,'*-r', 'LineWidth', 1)
hold on
plot(x, y2, '*-k', 'LineWidth',1)
hold on
plot(x, y3, '*-b', 'LineWidth',1)
hold on
plot(4.5, 2.08,'r.', 'MarkerSize', 20)
hold on
plot(4.5, 2.03,'k.', 'MarkerSize', 20)
hold on
plot(4.5, 0.0146331392,'b.', 'MarkerSize', 20)
box on
hold on
xticklabels({'Jan 7','Jan 14','Jan 21','Jan 28'})
xtickangle(45)
%ylim([-0.05 0.15])
title('January 2005')
set(gca,'Units','normalized')
titleHandle = get( gca ,'Title' );
pos = get(titleHandle , 'position' );
pos1 = pos + [0 0.005 0]
set(titleHandle , 'position' , pos1);
legend('EONIA', 'EU Shadow Rate', 'Textual', 'Actual EONIA', 'Actual Shadow', 'Actual Textual','Orientation', 'horizontal', 'Location', 'southoutside', 'NumColumns',2)
subplot(1,3,2)
plot(x,y11,'*-r', 'LineWidth', 1)
hold on
plot(x, y22, '*-k', 'LineWidth',1)
hold on
plot(x, y33, '*-b', 'LineWidth',1)
hold on
plot(4.5,2.08,'r.', 'MarkerSize', 20)
hold on
plot(4.5,2.05,'k.', 'MarkerSize', 20)
hold on
plot(4.5,0.0938280876,'b.', 'MarkerSize', 20)
box on
hold on
xticklabels({'April 7','April 14','April 21','April 28'})
xtickangle(45)
title('April 2005')
set(gca,'Units','normalized')
titleHandle = get( gca ,'Title' );
pos = get(titleHandle , 'position' );
pos1 = pos + [0 0.005 0]
set(titleHandle , 'position' , pos1);
legend('EONIA', 'EU Shadow Rate', 'Textual', 'Actual EONIA', 'Actual Shadow', 'Actual Textual', 'Orientation', 'horizontal', 'Location', 'southoutside', 'NumColumns',2)
subplot(1,3,3)
plot(x,y111,'*-r', 'LineWidth', 1)
hold on
plot(x, y222, '*-k', 'LineWidth',1)
hold on
plot(x, y333, '*-b', 'LineWidth',1)
hold on
line1 = plot(4.5,2.08,'r.', 'MarkerSize', 20)
hold on
line2 =plot(4.5,1.98,'k.', 'MarkerSize', 20)
hold on
line3 =plot(4.5,0.2170966370,'b.', 'MarkerSize', 20)
box on
hold on
xticklabels({'Aug 7','Aug 14','Aug 21','Aug 28'})
xtickangle(45)
title('August 2005')
set(gca,'Units','normalized')
titleHandle = get( gca ,'Title' );
pos = get(titleHandle , 'position' );
pos1 = pos + [0 0.005 0]
set(titleHandle , 'position' , pos1);
legend('EONIA', 'EU Shadow Rate', 'Textual', 'Actual EONIA', 'Actual Shadow', 'Actual Textual', 'Orientation', 'horizontal', 'Location', 'southoutside', 'NumColumns',2)
In the plot, I have 3 legends for each plot which are identical. I would like to have one unique legend below and outside (centred) the plots. I have read suggestions around but I couldn't make it work.
Can anyone help me with this?
Thanks!
0 Kommentare
Akzeptierte Antwort
DGM
am 3 Mai 2021
This is kind of roundabout, but maybe it helps:
subplot(1,3,1)
plot(x,y1,'*-r', 'LineWidth', 1)
hold on
plot(x, y2, '*-k', 'LineWidth',1)
hold on
plot(x, y3, '*-b', 'LineWidth',1)
hold on
plot(4.5, 2.08,'r.', 'MarkerSize', 20)
hold on
plot(4.5, 2.03,'k.', 'MarkerSize', 20)
hold on
plot(4.5, 0.0146331392,'b.', 'MarkerSize', 20)
box on
hold on
xticklabels({'Jan 7','Jan 14','Jan 21','Jan 28'})
xtickangle(45)
%ylim([-0.05 0.15])
title('January 2005')
set(gca,'Units','normalized')
titleHandle = get( gca ,'Title' );
pos = get(titleHandle , 'position' );
pos1 = pos + [0 0.005 0]
set(titleHandle , 'position' , pos1);
% when the legend is placed, it automatically resizes gca to a size we want
lh=legend('EONIA', 'EU Shadow Rate', 'Textual', 'Actual EONIA', 'Actual Shadow', 'Actual Textual','Orientation', 'horizontal', 'Location', 'southoutside', 'NumColumns',2);
% store this size so we can use it later so that all axes leave room
axpos1 = get(gca,'outerposition');
% moving the legend changes the size of gca again
lh.Position(1) = 0.5-lh.Position(3)/2;
set(gca,'outerposition',axpos1) % so change it back
subplot(1,3,2)
plot(x,y11,'*-r', 'LineWidth', 1)
hold on
plot(x, y22, '*-k', 'LineWidth',1)
hold on
plot(x, y33, '*-b', 'LineWidth',1)
hold on
plot(4.5,2.08,'r.', 'MarkerSize', 20)
hold on
plot(4.5,2.05,'k.', 'MarkerSize', 20)
hold on
plot(4.5,0.0938280876,'b.', 'MarkerSize', 20)
box on
hold on
xticklabels({'April 7','April 14','April 21','April 28'})
xtickangle(45)
title('April 2005')
set(gca,'Units','normalized')
titleHandle = get( gca ,'Title' );
pos = get(titleHandle , 'position' );
pos1 = pos + [0 0.005 0]
set(titleHandle , 'position' , pos1);
% change this axes to make room for legend
axpos2 = get(gca,'outerposition');
set(gca,'outerposition',[axpos2(1) axpos1(2) axpos2(3) axpos1(4)])
subplot(1,3,3)
plot(x,y111,'*-r', 'LineWidth', 1)
hold on
plot(x, y222, '*-k', 'LineWidth',1)
hold on
plot(x, y333, '*-b', 'LineWidth',1)
hold on
line1 = plot(4.5,2.08,'r.', 'MarkerSize', 20)
hold on
line2 =plot(4.5,1.98,'k.', 'MarkerSize', 20)
hold on
line3 =plot(4.5,0.2170966370,'b.', 'MarkerSize', 20)
box on
hold on
xticklabels({'Aug 7','Aug 14','Aug 21','Aug 28'})
xtickangle(45)
title('August 2005')
set(gca,'Units','normalized')
titleHandle = get( gca ,'Title' );
pos = get(titleHandle , 'position' );
pos1 = pos + [0 0.005 0]
set(titleHandle , 'position' , pos1);
% change this axes to make room for legend
axpos3 = get(gca,'outerposition');
set(gca,'outerposition',[axpos3(1) axpos1(2) axpos3(3) axpos1(4)])
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/605375/image.png)
Weitere Antworten (0)
Siehe auch
Kategorien
Mehr zu Legend finden Sie in Help Center und File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!