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
! _8 O- v1 u* p1 T' qSouth：Inside bottom
EastI：nside right
West：Inside left
, z  N, C/ _: A6 W) ZNorthEast：Inside top right (default)
0 x* @: h& q% p% NNorthWest：Inside top left
# s# z- z! `% T9 E! QSouthEast：Inside bottom right
SouthWest：Inside bottom left
NorthOutside：Outside plot box near top
SouthOutside：Outside bottom
4 F5 F+ [$ o! A: p% aEastOutside：Outsideright
& c! z- a% w6 k% `0 F8 EWestOutside：Outside left
6 `$ }/ v* p! ?: I2 y6 k& i# ]NorthEastOutside：Outside top right
NorthWestOutside：Outside top left
. g7 h# a5 E; `1 A$ e4 dSouthEastOutside：Outside bottom right
SouthWestOutside：Outside bottom left
4 E% ?0 Y- [8 d, pBest：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
legend('1','6','11','16','21');

方法2：简单到郁闷

H = plot(data);
% s% k/ v! ?0 zlegend(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');
7 d' C6 u8 q1 x3 u/ Dset(hl,'Box','off');

) V2 o9 W" g4 z+ z  D. j3 D5 O

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Matlab绘图中legend的终极用法