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

조회 수: 56(최근 30일)
Pul 2021년 8월 16일
댓글: Pul 2021년 8월 16일
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.

채택된 답변

Scott MacKenzie
Scott MacKenzie 2021년 8월 16일
편집: Scott MacKenzie 2021년 8월 16일
Here's some example code on how to control the "ticks":
x = 1:5;
y = randi(100, 1, 5);
set(gca, 'ylim', [0 100]);
set(gca, 'ytick', 0:5:100);
set(gca, 'ylim', [0 100]);
set(gca, 'ytick', 0:25:100);
set(gca, 'ylim', [0 100]);
set(gca, 'ytick', 0:20:100);
  댓글 수: 1
Pul 2021년 8월 16일
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.

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추가 답변(2개)

Pul 2021년 8월 16일
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?
  댓글 수: 4
Pul 2021년 8월 16일
Oh yes, I'm going to answer in the right box (see you above).

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Steven Lord
Steven Lord 2021년 8월 16일
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.
plot(x, y)
Let's say I want to put ticks every 50 units but only to label multiples of 100.
plot(x, y)
ticklocations = 0:50:1050;
% 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) = "";

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