How to add specific y-value in y-axis of plot
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Zeyad Elreedy
on 17 Dec 2022
Commented: Zeyad Elreedy
on 18 Dec 2022
Hello, I have the following graph which includes a waveform and its mean. Now, I want to add a value in the y-axis that directly corresponds to the mean, as highlighted below.
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/1234272/image.png)
Is there a way to do this?
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Accepted Answer
the cyclist
on 17 Dec 2022
Edited: the cyclist
on 17 Dec 2022
Here is an example using text:
rng default
x = rand(5,1);
meanx = mean(x);
figure
plot(x)
yline(meanx,'r')
text(0.6,meanx,sprintf('%6.2f',meanx))
3 Comments
the cyclist
on 17 Dec 2022
Yes, you could do something like this:
rng default
x = rand(5,1);
meanx = mean(x);
figure
plot(x)
yline(meanx)
set(gca,'YTick',sort([0.1 : 0.1 : 1, meanx]))
I did the sort(), because the ticks have to be in ascending order, and I think that is probably the easiest way.
You could do something more clever with
set(gca,'YTickLabel',<formatted labels here>)
if the higher precision for the mean is a problem.
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