# how to plot Double y axis?

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SOMNATH MAHATO on 11 Nov 2021
Answered: SOMNATH MAHATO on 22 Apr 2022
This value how plot in matlab R2015 version?
Distance (X axis) TIFF (y1) Percentage (y2)
Fixed Float
1 2 99 1
6 6 97 3
10 8 94 6
15 10 92 8
22 15 89 11

Yusuf Suer Erdem on 11 Nov 2021
x = linspace(0,10);
y = sin(x);
yyaxis left
plot(x,y)
z = (8*x);
yyaxis right
plot(x,z)
ylim([-150 150])
I put an example above. The x axis is singular. And we have two Y axis. The limit of Y axis is [-150,150]. I hope it helps!
##### 3 CommentsShow 1 older commentHide 1 older comment
Yusuf Suer Erdem on 11 Nov 2021
Just try the way below and it will work for you:
x = [1 6 10 15 22];
y1 = [2 6 8 10 15];
y2 = [99 97 94 92 89];
y3= [1 3 6 8 11];
plot(x,y1,x,y2,x,y3)
Adam Danz on 11 Nov 2021

Awais Saeed on 11 Nov 2021
For version 2016a aor later, use yyaxis instead
x = [1 6 10 15 22];
y1 = [2 6 8 10 15];
y2 = [99 97 94 92 89];
[hAx,hLine1,hLine2] = plotyy(x,y1,x,y2);
ylabel(hAx(1),'TIFF') % left y-axis
ylabel(hAx(2),'Percentage') % right y-axis
SOMNATH MAHATO on 21 Apr 2022
I can't change right y axis color. How i can change it?
Adam Danz on 22 Apr 2022
> I can't change right y axis color. How i can change it?
yyaxis right
ax = gca();
ax.YAxis(2).Color = 'r';

SOMNATH MAHATO on 22 Apr 2022
Below this this code y axis right side color not change. Have a look with this code.
x = [1 6 10 15 ];
y1 = [1 2 2 2 ];
y2 = [100 99.99 89.73 78.22];
figure('Color','w')
[hAx,hLine1,hLine2] = plotyy(x,y1,x,y2);
xlabel ('Distance (km)')
ylabel(hAx(1),'TFFS (s)') % left y-axis
ylabel(hAx(2),'Fix solution Percentage (%)') % right y-axis
grid on
yyaxis right
ax = gca();
ax.YAxis(2).Color = 'r';