Matlab中legend位置

Matlab中legend位置转⾃：
Matlab中legend默认的位置在NorthEast，如图所⽰：
%Matlab中legend的位置设置
clc
clear
close all
Npoint = 100;
x = linspace(0,4*pi,Npoint);
y1 = sin(x);
y2 = cos(x);
H = plot(x,y1,x,y2);
legend('sin(x)','cos(x)');
然⽽，我们却可以通过Location对legend的位置进⾏改变，变为North，如图所⽰
%Matlab中legend的位置设置
clc
clear
close all
Npoint = 100;
x = linspace(0,4*pi,Npoint);
y1 = sin(x);
y2 = cos(x);
H = plot(x,y1,x,y2);
legend('sin(x)','cos(x)','Location','North');
Matlab位置选择
设置位置
'North'inside plot box near top
'South'inside bottom
'East'inside right
'West'inside left
'NorthEast'inside top right (default for 2-D plots) 'NorthWest'inside top left
'SouthEast'inside bottom right
'SouthWest'inside bottom left
'NorthOutside'outside plot box near top
'SouthOutside'outside bottom
'EastOutside'outside right
'WestOutside'outside left
'NorthEastOutside'outside top right (default for 3-D plots) 'NorthWestOutside'outside top left
'SouthEastOutside'outside bottom right
'SouthWestOutside'outside bottom left
'Best'least conflict with data in plot
'BestOutside'least unused space outside plot Matlab中还可以选择某条曲线legend的指定显⽰
%Matlab中legend的选择
clc
clear
close all
Npoint = 101;
x = linspace(0,10,Npoint);
y1 = besselj(1,x);
y2 = besselj(2,x);
y3 = besselj(3,x);
y4 = besselj(4,x);
y5 = besselj(5,x);
H = plot(x,y1,x,y2,x,y3,x,y4,x,y5);
legend('First','Second','Third','Fourth','Fifth','Location','NorthEastOutside')
如果只想显⽰第1、3、5条，也很简单
%Matlab中legend的选择
clc
clear
close all
Npoint = 101;
x = linspace(0,10,Npoint);
y1 = besselj(1,x);
y2 = besselj(2,x);
y3 = besselj(3,x);
y4 = besselj(4,x);
y5 = besselj(5,x);
H = plot(x,y1,x,y2,x,y3,x,y4,x,y5);
h1 = legend(H([1 3 5]),'First','Third','Fifthth','Location','NorthEastOutside')还可以使⽤Orientation对legend进⾏横向排列
%Matlab中legend的横排，注意，Location位置改变为North
clc
clear
close all
Npoint = 101;
x = linspace(0,10,Npoint);
y1 = besselj(1,x);
y2 = besselj(2,x);
y3 = besselj(3,x);
y4 = besselj(4,x);
y5 = besselj(5,x);
H = plot(x,y1,x,y2,x,y3,x,y4,x,y5);
h1 = legend(H([1 3 5]),'First','Third','Fifthth','Location','North');
set(h1,'Orientation','horizon')
不显⽰⽅框：
clc
clear
close all
Npoint = 101;
x = linspace(0,10,Npoint);
y1 = besselj(1,x);
y2 = besselj(2,x);
y3 = besselj(3,x);
y4 = besselj(4,x);
y5 = besselj(5,x);
H = plot(x,y1,x,y2,x,y3,x,y4,x,y5);
h1 = legend(H([1 3 5]),'First','Third','Fifthth','Location','North'); set(h1,'Orientation','horizon','Box','off')。