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Hi Matlab Gurus,

I have the plot below, and i have two y axis, one on the left and one on the right, which are different to each other.

What i would like to do is only show the numbers on the y-axis (left and right), where the horizontal lines are

So i can draw a horizontal line using the left axix, and i can draw another horizonal line using the right axis.

then i want the axis to only show exactly where those lines are, not evenly spread based on itself, but only where the lines are, so that i know the exact value of the lines at both the left and right axis.

Any help would be highly appreciated.

Joel Lynch
on 9 Jun 2021

yyaxis left; % Sets the current y-axis left

left_ax = gca; % Creates "left_ax" variable which stores the current (left) y-axis

yyaxis right; % Sets the current y-axis right

right_ax = gca; % Creates "right_ax" variable which stores the current (right) y-axis

With these handles, you can find and edit pretty much any feature of the axis. For Tick Labels

left_ax.YTick = linspace(0,1,5); % Create 5 equally spaced ticks, for example

If your horizontal lines are meant to be grid lines, you can simple add them with

grid on

and they should conform to the tick labels on the active axis.

Joel Lynch
on 10 Jun 2021

right_ax.ylim = [min(right_ax.YTick), max(right_ax.YTick)];

should work, after YTick has been set.

darova
on 9 Jun 2021

try this yticks

h = plot(0:10,sin(0:10));

yy = 0:0.2:1;

[x,y] = ndgrid([0 10],yy);

line(x,y)

yticks(yy)

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