How to plot vertical lines?
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andrea
on 20 Oct 2014
Commented: Alberto Sivera
on 17 Nov 2021
This is the script:
x=[0:0.1:10]; x1=5;
plot(x,2*sin(x),x,5*sin(x),x,cos(x));
line([x1 x1],???????);
I would like to plot the vertical line from the top to the bottom without knowing the y-axis limits.
Thanks in advance!
0 Comments
Accepted Answer
Azzi Abdelmalek
on 20 Oct 2014
x=[0:0.1:10];
x1=5;
plot(x,2*sin(x),x,5*sin(x),x,cos(x));
y1=get(gca,'ylim')
hold on
plot([x1 x1],y1)
2 Comments
More Answers (5)
Kelly Kearney
on 20 Oct 2014
line([x1 x1], get(gca, 'ylim'));
5 Comments
Image Analyst
on 17 Nov 2021
@Alberto Sivera if you have R2018b or later, you should really be using xline() like @Pierre Tallotte shows in his answer below.
xline(x1, 'Color', 'r', 'LineWidth', 2);
Alberto Sivera
on 17 Nov 2021
thank you, but unfortunately I have the r2017b version and i'm too lazy to update it :)
Pierre Tallotte
on 10 Apr 2020
x=[0:0.1:10]; x1=5;
plot(x,2*sin(x),x,5*sin(x),x,cos(x));
xline(x1);
0 Comments
Image Analyst
on 20 Oct 2014
simply pass in ylim for the y array:
line([x1 x1], ylim);
3 Comments
Image Analyst
on 27 Jul 2017
Not sure.
ylim() is not returning the correct y axis range limits.
That certainly is weird. I'd call tech support on this one.
Jan
on 28 Aug 2017
If the axes is scaled, e.g. when adding new objects or for printing, using the current limits for the Y-position is fragile. You can use much larger positions and exclude the line from the list of objects, which influence the auto-scaling:
YL = get(gca, 'ylim');
YR = YL(2) - YL(1);
YL = [YL(1) - 1000 * YR, YL(2) + 1000 * YR];
line([5, 5], YL, 'YLimInclude', 'off')
'YLimInclude' in undocumented and might be removed in the future.
0 Comments
Jefferson Martinez Saavedra
on 23 Oct 2020
Does someone know how to get/download xline and yline functions? I have R2018a's version of MATLAB.
Thank you in advance.
1 Comment
Image Analyst
on 23 Oct 2020
If you dont' have xline and yline you can use line():
xl = xlim;
yl = ylim;
line([x, x], yl); % Old way of doing xline().
line(xl, [y, y]); % Old way of doing yline().
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