How do I show only two colors in my Legend?

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Heather Spain
Heather Spain 2020-5-26
评论： KALYAN ACHARJYA 2020-5-26
I only want to label in my legend the moon and the earth, so how do I get rid of the rest of the colours? Is it possible to only show the earth (yellow) and the Moon (green) in the legend?

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回答（1 个）

Ameer Hamza
Ameer Hamza 2020-5-26
You can use the handle returned by plot() with legend() to only show specific legends. For example
hold on;
p(1) = plot(rand(1,10));
p(2) = plot(rand(1,10));
p(3) = plot(rand(1,10));
p(4) = plot(rand(1,10));
p(5) = plot(rand(1,10));
legend(p([3 5]), {'legend3', 'legend5'});

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