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
* M8 v$ s3 S; g4 BSouth：Inside bottom
EastI：nside right
3 c: u9 t8 b; f: Y" ]+ QWest：Inside left
8 {( G" Q. p5 ?, x% e, sNorthEast：Inside top right (default)
NorthWest：Inside top left
/ F0 |) `+ _) {' u  f7 {# i" FSouthEast：Inside bottom right
SouthWest：Inside bottom left
NorthOutside：Outside plot box near top
SouthOutside：Outside bottom
EastOutside：Outsideright
5 Y) x: t& h# V- s# o6 ^WestOutside：Outside left
NorthEastOutside：Outside top right
NorthWestOutside：Outside top left
SouthEastOutside：Outside bottom right
SouthWestOutside：Outside bottom left
  S( j* G: c* G9 T) F: Y" Z0 hBest：Least conflict with data in plot
- t8 ]! i% P- j: b1 i2 e7 p. E5 uBestOutside：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
9 z/ w( n6 v- B% Dlegend('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');
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');
3 s$ `; z+ ~6 q$ t( i7 y1 L$ dset(hl,'Box','off');

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) c, W1 V6 A+ p9 R: b

yin123

Matlab绘图中legend的终极用法