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
' v0 B5 B$ u2 s  FSouth：Inside bottom
; Q: q) B: C$ I) k' iEastI：nside right
( _& Z  P! g/ G' p0 `West：Inside left
NorthEast：Inside top right (default)
3 ~& @- {' y' ~, Y' V4 |NorthWest：Inside top left
SouthEast：Inside bottom right
' ~7 @$ b+ c% y1 B: h& I& G) jSouthWest：Inside bottom left
NorthOutside：Outside plot box near top
SouthOutside：Outside bottom
EastOutside：Outsideright
WestOutside：Outside left
NorthEastOutside：Outside top right
: G" ~- D7 B2 ]) wNorthWestOutside：Outside top left
) }% E' [8 }5 U: F) S+ QSouthEastOutside：Outside bottom right
: K! f( A! e( [: i6 |SouthWestOutside：Outside bottom left
$ L. n8 D. D+ R+ R' L+ QBest：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);
2 i. b; N& q: Z" n$ olegend(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');
set(hl,'Box','off');

$ L6 t( A. ^, _. J: J6 i7 V+ H

yin123

Matlab绘图中legend的终极用法