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
3 K& \0 c, U0 l* HSouth：Inside bottom
0 g9 S( L+ Z: X. |: i% ?) bEastI：nside right
0 {$ T5 U6 |6 s' \% e4 U; AWest：Inside left
NorthEast：Inside top right (default)
7 N7 [8 Y$ J5 L. N! [NorthWest：Inside top left
" T5 D& C5 m5 j" BSouthEast：Inside bottom right
SouthWest：Inside bottom left
, Y& t* y1 c! D- n# |' ANorthOutside：Outside plot box near top
SouthOutside：Outside bottom
/ F$ t& z3 t5 zEastOutside：Outsideright
WestOutside：Outside left
% X2 Q) v# k9 N) @NorthEastOutside：Outside top right
5 _6 ~* q& y; `9 RNorthWestOutside：Outside top left
SouthEastOutside：Outside bottom right
2 O6 d9 ^+ v4 L$ ]; I3 Z1 H# BSouthWestOutside：Outside bottom left
2 r% O  G  e" V1 W+ F! T' MBest：Least conflict with data in plot
0 a9 R* [2 O7 R, {% ?/ K+ t& EBestOutside：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');
" `. X1 D$ W1 r& Nend
legend('1','6','11','16','21');

方法2：简单到郁闷

H = plot(data);
  D3 V8 x/ B; J2 P' ~$ h; X: F1 ]# Elegend(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');
' h4 n' {+ Z+ a5 I: Pset(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');

( x7 q9 x: [/ t: [3 H

yin123

Matlab绘图中legend的终极用法