How to add extra text to plot legend?

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Giuseppe
Giuseppe am 11 Mär. 2022
Beantwortet: Ron Fredericks am 28 Jan. 2025
Hi, guys
Let us suppose that I have the following simple code:
clc; clear all; close all;
x = linspace(0, 2*pi, 100);
figure
hold on;grid on; box on;
plot(x,sin(x));
plot(x, cos(x));
plot(x, tan(x));
axis([0 2*pi -4 4]);
legend('sin', 'cos', 'tan');
My goal is to add some extra text in the legend box as shown in the following image example (image modified with gimp):
Can you help me to codify this task?
  2 Kommentare
KSSV
KSSV am 11 Mär. 2022
You can try legend title.
Giuseppe
Giuseppe am 11 Mär. 2022
Thanks! Is it possible to put the title below the legend instead of above?

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Kiran Felix Robert
Kiran Felix Robert am 15 Mär. 2022
Hi Guiseppe,
Please refer the legend properties documentation and the following MATLAB Answer post for legend positioning.

Weitere Antworten (1)

Ron Fredericks
Ron Fredericks am 28 Jan. 2025
You can append extra text to a legend using a hidden marker. You can also optionally add an extra line seperating the text from the standard legend objects using newline.
Code:
clc; clear all; close all;
x = linspace(0, 2*pi, 100);
figure
hold on;grid on; box on;
plot(x,sin(x));
plot(x, cos(x));
plot(x, tan(x));
axis([0 2*pi -4 4]);
% Code to append text to legend
plot(0, 0, "o", 'color', 'none', 'MarkerSize', 10);
legend('sin', 'cos', 'tan', [newline 'Extra Text Here']);

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R2021a

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