How to create a uniform y-tick interval in subplots

Question

Richard Rees 2020-3-23

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https://ww2.mathworks.cn/matlabcentral/answers/512453-how-to-create-a-uniform-y-tick-interval-in-subplots

评论： Richard Rees 2020-3-24

Hello, I am wondering how to create a uniform y tick interval between subplots in matlab, that takes into consideration the ylimits?

Lets say that I only wanted there to be only 4 intervals per plot and only rounded ytick labels apparement, all the precise same position per subplot. I tried to do this calculating the min and max's for each subplot and dividng the absolute difference between each by 4, unfortunately it didn't work out. Below is the graph that is created without any interference by myself. If anyone is familar with TecPlot, I want to make the axis values 'nice'.

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Stijn Haenen 2020-3-23

在 MATLAB Online 中打开

You can change the thick labels with:

h=figure();
plot(1:10)
h.CurrentAxes.YTick=[1,3,6]

In this example ythicks: 1, 3, 6 are shown.

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Answer 1

Cris LaPierre 2020-3-23

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https://ww2.mathworks.cn/matlabcentral/answers/512453-how-to-create-a-uniform-y-tick-interval-in-subplots#answer_421536

在 MATLAB Online 中打开

Something like this works. Note that you'll have some challenges because most of your y values are very small, so it might not look quite like you'd expect.

p1 = rand([50,1])*5.5-1.1;
p2 = rand([50,1])*3.5e-6 - 3e-6;
p3 = rand([50,1])*0.5e-6 + 3.8e-6;
p4 = rand([50,1])*4.1e-7 - 3e-7;
p5 = rand([50,1])*0.2e-6 - 3.45e-6;
subplot(5,1,1)
plot(p1)
yval = ylim(gca);
set(gca,'YTick',linspace(yval(1),yval(2),5),"YTickLabel",round(linspace(yval(1),yval(2),5)))
 
subplot(5,1,2)
plot(p2)
yval = ylim(gca);
set(gca,'YTick',linspace(yval(1),yval(2),5),"YTickLabel",round(linspace(yval(1),yval(2),5),6))
subplot(5,1,3)
plot(p3)
yval = ylim(gca);
set(gca,'YTick',linspace(yval(1),yval(2),5),"YTickLabel",round(linspace(yval(1),yval(2),5),6))
subplot(5,1,4)
plot(p4)
yval = ylim(gca);
set(gca,'YTick',linspace(yval(1),yval(2),5),"YTickLabel",round(linspace(yval(1),yval(2),5),7))
subplot(5,1,5)
plot(p5)
yval = ylim(gca);
set(gca,'YTick',linspace(yval(1),yval(2),5),"YTickLabel",round(linspace(yval(1),yval(2),5),6))