Adding a second scaled y-axis to a plot

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Christian Nørgaard
评论： Ameer Hamza 2018-5-25
Hello,
I have been trying to figure out how to add a second scaled y-axis ( or even just a second y-axis) and even after reading through several Matlab forum posts it still does not work. I was wondering if anyone out there, would help me figure out what I am doing wrong.
My personal thoughts on what is wrong is something to do with the fact that I am trying to plot a curve fit on a set of data and when I tell Matlab to plot according to some x-axis is can not compute my request.
My matlab code so far:
x=[
0
3
6
9
11.5
13.952
];
y=[
0.905
0.900
0.850
0.800
0.788
0
];
v=[
0
3
6
9
11.5
13.952
];
p=[
0
2.5
5.1
8.9
11.493
0
];
f=fit(v,p,'poly5')
c=fit(x,y,'exp2')
figure(1)
plot(f)
figure(2)
x= 0: 1.0 : 15;
plot(f);
hold on;
plot(c)
Where x,y are plots for one curve and v,p (x and y coordinates respectivly) for the other curve
I have tried,
x= 0: 1.0 : 15;
plot(x,f);
hold on;
plot(x,c)
and I tried to follow the example given in https://se.mathworks.com/matlabcentral/answers/23591-examples-of-multiple-plots-on-one-graph ( more specifically the accepted answer given by Chandra Kurniawan) , where a problem similar to what I am facing now was asked and answered.
Any help/thoughts/advice is extremely welcome! Thank you in advance

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采纳的回答

Ameer Hamza
Ameer Hamza 2018-5-25
You can use yyaxis to plot 2 axis
x = 0:0.1:10;
yyaxis left
plot(x, x);
yyaxis right
plot(x, sin(x))
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Christian Nørgaard
Christian Nørgaard 2018-5-25
IT WORKED!!! THANKS !!!! 6 hrs of lovely troubleshooting is finally done!!!!!!!! Thanks a lot!

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