Greetings, I want to plot a figure with two y-axis but I get the undefined function for the yyaxis right command

figure (1)

subplot(2,2,3)

E1=74e5;

Lz=3.5e-3:0.1e-3:8e-3;

d=10e-2;

IF=1/64*(pi*d^4);

Kz=2*1.8;

E=31;

h=0.16;

b=8.5;

n=1;

Pf=E1*IF*(n.*pi./Lz).^2+(Kz);

R=E*h*b./(2.*Pf);

yyaxis left

plot(Lz,R)

%hold on

Kz=2*3e4;

Pf=E1*IF*(n.*pi./Lz).^2+(Kz);

P=Pf*(1+Kz./(Ef.*0.6));

R=E*h*b./(2.*Pf);

yyaxis right

plot(Lz,R)

Answer 1

[Steven Lord]

According to the yyaxis function documentation page, this function was "Introduced in R2016a". Which release are you using? If you're using a release prior to R2016a you'll need to upgrade to use this function.

[Misi]

Many thanks, you are right. My software version is 2015.