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Setting legend of a plot

조회 수: 21 (최근 30일)
Shahriar Shafin
Shahriar Shafin 2024년 1월 30일
댓글: Star Strider 2024년 1월 31일
How do I set up a legend like this(two curves one legend then some gap)??
  댓글 수: 2
VBBV
VBBV 2024년 1월 31일
The plots you show have custom legends.
Try this link available in FEX where you can change the legend layout and behavior as you wanted
Dyuman Joshi
Dyuman Joshi 2024년 1월 31일
Why not plot an empty line along side and use a blank as its legend entry?
x = 0:0.01:10;
figure
plot(x, sin(x))
hold on
plot(x,cos(x));
plot(x,floor(x/5))
plot(x,NaN(size(x)))
xlim([-1 11])
str = ["sin" "cos" "custom" ""];
legend(str, 'NumColumns', 2)

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채택된 답변

Star Strider
Star Strider 2024년 1월 30일
Set the original legend to 'Location','NE' and then use:
legend('boxoff')
Also, see Position Multiple Axes in Figure if you have not done so already.
  댓글 수: 6
Shahriar Shafin
Shahriar Shafin 2024년 1월 31일
@Star Strider got it ,thanks a lot.
Star Strider
Star Strider 2024년 1월 31일
As always, my pleasure!

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추가 답변 (2개)

Image Analyst
Image Analyst 2024년 1월 30일
I think you'd have to build it up manually with the plot and text functions.

VINAYAK LUHA
VINAYAK LUHA 2024년 1월 30일
Hello Shahriar,
It looks like you want to overlay two sets of axes, with the larger one encompassing the smaller, and include a common legend for both in MATLAB. To accomplish this task, adhere to the following instructions:
  • First, Create an axes called "larger" and add plots to it.
  • Next, define a another axes called "smaller" to be positioned within the "larger" axes.
  • Finally,to create a common legend, plot invisible lines and assign the legends to them.
Here's the MATLAB code for your reference:
x = linspace(1, 10, 100);
y1 = log(x);
y2 = log(x.^2);
y3 = log(x.^3);
y4 = log(x.^4);
figure;
larger = axes;
plot(larger, x, y1, 'r-', x, y2, 'b-', x, y3, 'g-', x, y4, 'k-');
hold(larger, 'on');
smaller = axes('Position', [0.2 0.6 0.25 0.25]);
plot(smaller, x, y1, 'r-', x, y2, 'b-', x, y3, 'g-', x, y4, 'k-');
h1 = plot(larger, NaN, NaN, 'r-');
h2 = plot(larger, NaN, NaN, 'b-');
h3 = plot(larger, NaN, NaN, 'g-');
h4 = plot(larger, NaN, NaN, 'k-');
legend(larger, [h1, h2, h3, h4], {'log(x)', 'log(x^2)', 'log(x^3)', 'log(x^4)'});
Hope this helps you to understand how to have a common legend for two nested axes
Regards
Vinayak Luha

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