Please tell me how to erase meaningless lines from graphs!
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![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/1117770/image.png)
In the graph above, I want to erase the line that crosses pi at -pi, how can I do it?
I wasn't there originally... It's a simple question, but I can't solve it.
plot(data(:,1),data(:,2))
xlim([-pi pi])
xticks(-pi:pi/2:pi)
xticklabels({'-\pi','-\pi/2','0','\pi/2','\pi'})
pbaspect([ 1 1 1])
grid on
xlabel('rad')
ylabel('mm')
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Accepted Answer
Dyuman Joshi
on 6 Sep 2022
Edited: Dyuman Joshi
on 6 Sep 2022
There is repetition in your data, 1st and Last row are the same.
%plot upto 2nd last row
plot(data(1:end-1,1),data(1:end-1,2))
xlim([-pi pi])
xticks(-pi:pi/2:pi)
xticklabels({'-\pi','-\pi/2','0','\pi/2','\pi'})
pbaspect([ 1 1 1])
grid on
xlabel('rad')
ylabel('mm')
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More Answers (1)
Star Strider
on 6 Sep 2022
LD = load(websave('data','https://www.mathworks.com/matlabcentral/answers/uploaded_files/1117765/data.mat'));
data = LD.u;
data = sortrows(data,1);
plot(data(:,1),data(:,2))
xlim([-pi pi])
xticks(-pi:pi/2:pi)
xticklabels({'-\pi','-\pi/2','0','\pi/2','\pi'})
pbaspect([ 1 1 1])
grid on
xlabel('rad')
ylabel('mm')
The ‘wrapped’ lines are almost always solved by sorting.
.
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