How can I change the interval on the y-axis?

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Hello everyone,
how can I change the interval on the y-axis?
For istance, if I want to put an interval every 25 or 50.
Thank you.

采纳的回答

Scott MacKenzie
Scott MacKenzie 2021-8-16
编辑:Scott MacKenzie 2021-8-16
Here's some example code on how to control the "ticks":
x = 1:5;
y = randi(100, 1, 5);
plot(x,y);
set(gca, 'ylim', [0 100]);
set(gca, 'ytick', 0:5:100);
plot(x,y);
set(gca, 'ylim', [0 100]);
set(gca, 'ytick', 0:25:100);
plot(x,y);
set(gca, 'ylim', [0 100]);
set(gca, 'ytick', 0:20:100);
  1 个评论
Pul
Pul 2021-8-16
Yes, I tried, but I got the result you can see in the picture.
But the scale is wrong, because the value 30, for cyan and magenta data, should be lower and not at the end.
Thanks.

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更多回答(2 个)

Pul
Pul 2021-8-16
set(gca, 'ylim', [0 1400]);
set(gca, 'ytick', 0:25:1400);
Yeah, I know.
I tried in this way (every 25). But if I don't want to have labels so close but just some labels every 25?
  4 个评论
Scott MacKenzie
Scott MacKenzie 2021-8-16
编辑:Scott MacKenzie 2021-8-16
Yes, but this is starting to sound like a different question. And we're commenting here in the answer box. Ouch!
But, to your point, yes, you can plot the data that appear in magenta from the right-side axis. They will have their own limits and will be fully visible. See Create Chart with Two y-Axes for details.
Pul
Pul 2021-8-16
Oh yes, I'm going to answer in the right box (see you above).

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Steven Lord
Steven Lord 2021-8-16
You can use the yticks and yticklabels functions to control the locations of the ticks and the labels used for those ticks.
x = 0:0.5:32;
y = x.^2;
plot(x, y)
Let's make a copy of that plot (so you can see the difference when I run the code in MATLAB Answers) and update the tick locations.
figure
plot(x, y)
yticks(0:50:1050)
Let's say I want to put ticks every 50 units but only to label multiples of 100.
figure
plot(x, y)
ticklocations = 0:50:1050;
yticks(ticklocations)
% Create the tick labels from the tick locations
% Or you could use
%
% ticklabels = yticklabels;
ticklabels = string(ticklocations);
% Replace the labels for any tick location that's not a multiple of 100
% with a blank label
ticklabels(mod(ticklocations, 100) ~= 0) = "";
yticklabels(ticklabels)

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