Displaying legend for multiple plots
6 visualizaciones (últimos 30 días)
Mostrar comentarios más antiguos
Marin
el 17 de Abr. de 2012
Comentada: mimi sam
el 22 de Mayo de 2017
I haven't seen this question asked yet, so I guess the solution is quite simple, but I haven't been able to find it.
I need to plot several groups of lines (each of about 10-15 lines) and display legend, but not for each of the lines seperately but only for each group.
Specificaly, I have groups of impact craters arranged by the age of the surface they are on. Each group has around20-30 craters and there are 4 groups, so I want the legend of the graph to have 4 entries, one for each group.
Can someone help me with this? Thank you in advance.
0 comentarios
Respuesta aceptada
Luffy
el 7 de Jul. de 2012
Editada: Luffy
el 7 de Jul. de 2012
h = get(gca,'Children');
Then select handles of lines you want to add to legend.
Say h(1) is handle of a line in 1st group,
h(10) 2nd group,
h(15) 3rd
h(30) 4th
v = [h(1) h(10) h(15) h(30)]';
legend(v);
3 comentarios
Luffy
el 7 de Jul. de 2012
You need not use hold on command that many times,just write it before for loop,after figure command
Más respuestas (1)
Luffy
el 7 de Jul. de 2012
Editada: Luffy
el 7 de Jul. de 2012
a=randn(5,50);
b=randn(5,50);
c=randn(5,50);
figure;
hold on;
for i=1:5
plot(a(i,:),'.-b');
plot(b(i,:),'.-r');
plot(c(i,:),'.-g');
end
h = findobj('Color','r');
g = findobj('Color','b');
i = findobj('Color','g');
v = [h(1) g(1) i(1)];
legend(v);
% For location where your legend should appear see
doc legend
2 comentarios
mimi sam
el 22 de Mayo de 2017
Or you can proceed as in this example (of matlab)
Plot three lines and return the chart line objects created. Then, create a legend that includes only two of the lines by specifying the first input argument as a vector of the chart line objects to include.
x = linspace(0,3*pi); y1 = sin(x); p1 = plot(x,y1);
hold on y2 = sin(x - pi/4); p2 = plot(x,y2);
y3 = sin(x - pi/2); p3 = plot(x,y3); hold off
legend([p1 p3],'First','Third')
Ver también
Categorías
Más información sobre Legend en Help Center y File Exchange.
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!