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
- h1 g. p1 _8 xSouth：Inside bottom
EastI：nside right
3 ?" I6 n1 `! @: S2 J( ?% oWest：Inside left
7 q7 Z( A2 k0 p6 d4 [# hNorthEast：Inside top right (default)
NorthWest：Inside top left
7 j2 N: `1 y/ }5 w4 a- P1 T$ ySouthEast：Inside bottom right
SouthWest：Inside bottom left
NorthOutside：Outside plot box near top
SouthOutside：Outside bottom
5 }4 s! k& ~  B' c& M- @8 mEastOutside：Outsideright
WestOutside：Outside left
NorthEastOutside：Outside top right
- |5 H1 H1 ~" n' v3 r. n7 cNorthWestOutside：Outside top left
0 @; N1 s% B# ^SouthEastOutside：Outside bottom right
' B% [  I7 e; P4 Q, ySouthWestOutside：Outside bottom left
- ^% b" D( M( d8 F- HBest：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]
7 n- O7 Y* j4 f% mset(get(get(H(i),'Annotation'),'LegendInformation'),'IconDisplayStyle','off');
- [' J! u5 n8 k! \+ D) _end
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');
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');
$ W3 q6 f  `, bset(hl,'Box','off');

& ^4 }* s5 x) k
# Q) I: s$ H6 {1 x+ l( V6 j

yin123

Matlab绘图中legend的终极用法