Plot Legend

Question

Jason 2011-4-7

1
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/5018-plot-legend

Is there anyway to get rid of the first data with the legend() command? I just want it to show the second data, because the first data is a patch.

I have something like this:

legendtext = 'testing'

legend([repmat(' ',1,length(legendtext));legendtext], 'location', 'northeastoutside')

That code allow me to have text starting with the second data, but the symbol for the first data still show up because of it being a patch.

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Answer 1

Jiro Doke 2011-4-7

2
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https://ww2.mathworks.cn/matlabcentral/answers/5018-plot-legend#answer_7023

在 MATLAB Online 中打开

If you look at the documentation for legend, there's a syntax where you can specify the handles to the graphics objects you want to create a legend for.

hPatch = patch([1 2.5 4 3 2], [2 1 2 3 3], [1 0.5 0.5]);
hold on;
hLines = plot(4*rand(5, 2));
% Create legend just for the lines
legend(hLines, 'Line 1', 'Line 2', 'Location', 'NortheastOutside');