Matlab绘图中legend的终极用法

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基本用法：

legend({'str1','str2','strn'});

高级用法1：指定legend显示的位置：

legend({'str1','str2','strn'},1);

legend({'str1','str2','strn'},2);

legend({'str1','str2','strn'},'Location','SouthEast');

可选的位置很多：

North：Inside plot box near top
South：Inside bottom
EastI：nside right
' v, x! w' Y/ R$ q( C8 D' vWest：Inside left
3 T; m  L2 c7 C" L0 qNorthEast：Inside top right (default)
% B  a$ ~# [+ H1 `NorthWest：Inside top left
& s- `( i" T* D6 [! X. ?. d9 KSouthEast：Inside bottom right
SouthWest：Inside bottom left
; T1 h2 R/ K' J. `# p- s1 o* I* @5 aNorthOutside：Outside plot box near top
SouthOutside：Outside bottom
EastOutside：Outsideright
WestOutside：Outside left
NorthEastOutside：Outside top right
5 g3 E5 y1 o1 q( A2 VNorthWestOutside：Outside top left
2 X) {2 l% H: @8 B5 @; H$ }SouthEastOutside：Outside bottom right
SouthWestOutside：Outside bottom left
Best：Least conflict with data in plot
BestOutside：Least unused space outside plot

通常，用'Best‘比较不错

高级用法2：指定显示某几条曲线的legend：

方法1：复杂到吐血

例如你有25条曲线，想显示其中1，6，11，16，21的legend，则

for i = [2:5 7:10 12:15 17:20 22:25]
set(get(get(H(i),'Annotation'),'LegendInformation'),'IconDisplayStyle','off');
end
4 z7 r0 C: R  l3 w/ M) M6 T% ~legend('1','6','11','16','21');

方法2：简单到郁闷

H = plot(data);
legend(H([1 6 11 16 21],'1,'6','11’,'16','21');

高级用法3：legend横排

hl = legend(H([1 6 11 16 21],'1,'6','11’,'16','21');
1 ^1 A5 b6 u# x0 @set(hl,'Orientation','horizon')

高级用法4：不显示方框：

hl = legend(H([1 6 11 16 21],'1,'6','11’,'16','21');
set(hl,'Box','off');

* e- I" v) f2 w5 L/ f

yin123

Matlab绘图中legend的终极用法