Is there a way to link the left and right y-axes on a GUI Axes after using yyaxis?

I haven't been able to find any documentation on it and linkaxes() specifies 'axes' in particular rather than a particular axis attached to an axes. I have plotted the data that I have on each y-axis, but when I use 'zoom', it only zooms on one of the two y-axes. Example code below is from the Matlab documentation for yyaxis:

x = linspace(0,10);
y = sin(3*x);
yyaxis left
plot(x,y)

z = sin(3*x).*exp(0.5*x);
yyaxis right
plot(x,z)
ylim([-150 150])

% linkaxes((yyaxis left)? (yyaxis right)?)

I'm not able to save each yy-axis to a variable so I can't reference it that way either. Any help with this is greatly appreciated!

[Adam]

Why do you need two y-axes in the first place if you want them to show exactly the same range? Wouldn't you get the same information from the plot by just having both plots on the same regular axes?

[Thomas Schill]

I'm attempting to link the zoom between the two axes; they are not on the same range. The goal is to apply the same functionality that linkaxes provides to two separate axes objects (by linking their axis scaling) to the left and right y-axes on a single axes.

[Adam]

You'd probably be better off explicitly using two axes in the same location and putting the axis of one on the right. The whole yyaxis thing seems very underwhelming to me whenever I've used it in terms of functionality it allows. I don't really know why it was programmed the way it was, but it isn't user friendly, not consistent with being able to work with explicit axes handles for plotting-related instructions.

[Thomas Schill]

I think I can make that work! Thank you!

Answer 1

[Luis]

There is a function similar to 'linkaxes' call 'linkprop' that do the trick. You only need to link the 'Limits' property on each YAxis. Here an example code:

% Create some plot
x=0:100;
plot(x,sin(.1*x).^2*1000);
grid on

% Add a second axis
yyaxis right
ax=gca();
ax.YAxis(2).TickValues = [10 100 1000];
ax.YTickLabel = {'10^1','10^2','10^3'};

%% Link the 'Limits' property
r1=ax.YAxis(1);
r2=ax.YAxis(2);

linkprop([r1 r2],'Limits')