Add another y axis on the plot

Hi Can anyone tell me how to add another y axis (not x) on the RHS of my graph? I want it has the same settings as the LHS one. I don't want to use plotyy as it requires have two series but I only have one. Thanks

Answer 1

[Yao Li]

Why not try plotyy(x,y,x,y)? Actually, you don't need two different series. They can be identical.

[Linden]

I tried actually but didn't work. My graph is a bit complicated. It has bar charts behind the line chart as well.

[Yao Li]

http://www.mathworks.com/help/matlab/creating_plots/graph-with-multiple-x-axes-and-y-axes.html

may be helpful

And there is an app named as addaxis in File Exchange