matlab中双坐标轴的画法
例一：
[AX, H1, H2]=plotyy(n,l,n,s):figure(gcf);
set(H1,’Marker’,’*’);
set(H2,’Marker’,’o’);
legend([H1,H2],’XXXX’,’YYYY’);
例二：
clc
clear all
close all
runoff=[10700 11400 15800 22900 43100 40700 50500 46000 41800
35000];
sed=[0.105 0.094 0.156 1.264 0.363 0.429 0.731 0.682 0.654 0.290];
m=1:10;
[ax,h1,h2]=plotyy(m,runoff,m,sed); %h– line handle
set(get(ax(1),’Ylabel’),’string’,’Runoff (m^3/s))’,’color’,’r’)
%y1
set(get(ax(2),’Ylabel’),’string’,’Sediment concentration
(kg/m^3)’,’color’,’k’) %y2
xlabel(‘Month’)
set(h1,’linestyle’,’-‘,’color’,’r’); set(h2,’lines