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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 top0 M" n r0 i- V, y0 X0 ~) ~
South:Inside bottom
3 h2 M: v: Y) d% {, H qEastI:nside right
: B6 n9 M0 ?! e7 |! o& G3 LWest:Inside left. x2 x3 U4 l* X N0 {
NorthEast:Inside top right (default)! q+ X( v. t, I( S& F2 |1 \
NorthWest:Inside top left( a4 u) b4 I. H9 C
SouthEast:Inside bottom right/ \! h/ U4 X' n3 V" g! R o5 Z8 ^
SouthWest:Inside bottom left3 i) q Z& R2 y9 k
NorthOutside:Outside plot box near top0 l& s# ~0 A% Q! _. \
SouthOutside:Outside bottom8 d# @5 s' a. G: v4 y- [3 y) E( V
EastOutside:Outsideright
7 S6 Q( H K9 I7 h8 ~/ e5 _" V1 `- LWestOutside:Outside left! \; m# o- N/ c
NorthEastOutside:Outside top right
. c/ R0 x1 S4 t. |NorthWestOutside:Outside top left
) m! D1 ^7 c% {! B7 {SouthEastOutside:Outside bottom right
" v, o* K- p6 D4 o* X K iSouthWestOutside:Outside bottom left4 R0 h) y9 @2 N
Best:Least conflict with data in plot
0 ~* g: O* u# ? tBestOutside: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]' F ~ X3 P' ~5 B- C- M5 D; a
set(get(get(H(i),'Annotation'),'LegendInformation'),'IconDisplayStyle','off');5 W5 h- j& H/ G) X7 a: ?5 z
end# F. M5 S" o) ^8 a0 `* D
legend('1','6','11','16','21'); 方法2:简单到郁闷 H = plot(data);
. }$ u( [5 W4 b, S" D: f" }5 @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 P B* h8 T( L0 ?- Lset(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');
$ _5 O; {- v* Y2 K- _" ]set(hl,'Box','off');
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