how can i cut data from a plot?

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lucas
lucas on 31 Jul 2014
Commented: nam bui on 12 Feb 2021
hello, goodmorning folks
how can i cut a data clicking on a plotted data? i want to cut the data from where i click untill the end
anyone has this code?
thx :)
  1 Comment
Sara
Sara on 31 Jul 2014
From where you click you mean:
  • cut the elements after the one you click on with respect to the x-axis?
  • cut the elements after the one you click on with respect to the position of the element in the original array?
Have you looked into ginput?

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Accepted Answer

Ben11
Ben11 on 31 Jul 2014
Edited: Ben11 on 31 Jul 2014
As Sara suggests, using ginput to let the user select a x-value from which to crop:
clear
clc
x = 1:10*pi;
figure
subplot(2,1,1)
plot(x,sin(x));
title('Original plot');
uiwait(msgbox('Select an x-value from which to crop','modal'));
[x_user ~] = ginput(1); % Let the user select an x-value from which to crop.
x(x>x_user) = [];
subplot(2,1,2);
plot(x,sin(x));
title('New plot with cropped values');
xlim([min(x(:)) max(x(:))]);
results in the following:
  1 Comment
nam bui
nam bui on 12 Feb 2021
Hello, I'm wondering how you you do it if I want to plot out both end of the graph, meaning when its at 2.5 and 25.5?

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