yyaxis: how to get matching ticks on left/right y-axis?

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JarryG
JarryG 2020-3-10
编辑： Andres 2022-6-27
In my script I have been using:
plotyy(x,y1,x,y2)
But now editor says "plotyy is not recommended, use yyaxis instead". Not a big issue, so I changed my script, but now left and right vertical axis have different number of ticks (in my case 6 ticks on the left y-axis, 7 ticks on the right y-axis).
So with "grid on" horizontal lines are properly connected to ticks of the left y-axis, but not to the ticks of the right y-axis. How can I fix this? With "plotyy" I always used "YLimits auto" and "YTickMode auto" and never had such problem...

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回答（2 个）

Andres
Andres 2022-6-25
编辑：Andres 2022-6-27
More than I like (major) grid lines in plots I hate grid lines that miss ticks on an axis or that connect to ticks at bad values – an insult to the eyes ;-)
You may have a look at my file exchange submission yyaxis tools that contains the function yytick to automatically align the ticks of both y-axes.
Ameer Hamza
Ameer Hamza 2020-3-10
编辑：Ameer Hamza 2020-3-10
You can link the limits of both axes so that they remain the same
fig = figure();
ax = axes();
yyaxis right
linkprop(ax.YAxis, 'Limits');
plot(...); % plot on any of the axes
  2 个评论
JarryG
JarryG 2020-3-10
Yes I can, but it does not look well if curve1 has values 0-7 and curve2 0-600...
Ameer Hamza
Ameer Hamza 2020-3-10
Yes, It will happen. The other alternative is just to let the axis unlinked.

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