matlab双y轴作图_matlab中双坐标轴画图
x = 0:0.01:20;
y1 = 200*exp(-0.05*x).*sin(x);
y2 = 0.8*exp(-0.5*x).*sin(10*x);
y3 = sin(x);
[AX,H1,H2] = plotyy(x,[y1;100*y3],x,[y3;y2],'plot');
************************************
对原图双坐标的某一坐标加曲线：
x=linspace(0,2*pi,40);
[ax,h1,h2]=plotyy(x,sin(x)+cos(x),x,exp(x));
set(h1,'linestyle','-')
set(h2,'linestyle','-')
set(h1,'marker','o')
set(h2,'marker','+')
hold on
x=linspace(0,2*pi,40);
hh=line(x,cos(x));
set(hh,'linestyle','-')
set(hh,'marker','s')
hold on
hhf=line(x,sin(x));
set(hhf,'color','r')
set(hhf,'linestyle','-')
set(hhf,'marker','*')
legend([h1,h2,hh,hhf],'sin(x)+cos(x)','exp(x)','cos(x)','sin(x)',0);
********************************
my codes:
clear all
clc;
%**************
I = 0:0.005:4;
V1 = zeros(1,length(I));
Irr = 1000;
Temp = 25;
for i = 1:length(I)
V1(i)
= PV_model_current_test_noDiode(I(i),Irr,Temp);
end
P1=V1.*I;
%**************
I = 0:0.005:4;
V = zeros(1,length(I));
Irr = 300;
Temp = 25;
for i = 1:length(I)
V2(i)
= PV_model_current_test_noDiode(I(i),Irr,Temp);
end
P2=V2.*I;
%**************
figure(1);
[AX,H1,H2] = plotyy(V1,I,V1,P1);
set(H1,'LineStyle','-','LineWidth',4);
set(H1,'color','b');
set(H2,'LineStyle','-.','LineWidth',4);
set(H2,'color','b');
set(AX(1),'xlim',[0 45],'ylim',[0
5],'FontSize',40,'LineWidth',6,'Xcolor','k','Ycolor','k','FontName','Times
New Roman');
set(AX(2),'xlim',[0 45],'ylim',[0
65],'FontSize',40,'LineWidth',6,'Xcolor','k','Ycolor','k','FontName','Times
New Roman');
set(get(AX(1),'Ylabel'),'string','I
(A)','FontSize',40,'FontName','Times New Roman');
set(get(AX(2),'Ylabel'),'string','P
(W)','FontSize',40,'FontName','Times New Roman');
xlabel('V (V)');
set(AX(1),'ytick',[0:1:5]);
set(AX(2),'ytick',[0:13:65]);
hold on;
hhf1=plot(AX(1),V2,I);
set(hhf1,'color','k')
set(hhf1,'linestyle','-.','LineWidth',6)
hold(AX(2));
hhf2=plot(AX(2),V2,P2);
set(hhf2,'color','k')
set(hhf2,'linestyle',':','LineWidth',6)
hold on;
hhf3=plot(AX(1),V2+V1,I);
set(hhf3,'color','r')
set(hhf3,'linestyle','--','LineWidth',6)
hold on;
hhf4=plot(AX(2),V2+V1,P2+P1);
set(hhf4,'color','r')
set(hhf4,'linestyle',':','LineWidth',6)
grid off
Note： 可以先对AX1
和AX2分别画一条曲线，然后再用hold on； plot来对两坐标添加更多的曲线。