Hello! How can i delete a line from my figure?

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Stany Stone
Stany Stone 2019-12-28
评论： Stany Stone 2019-12-30
Hello! I have an image from which i would like to delete a line. How can i do that? When i use the delete() function it does not work. There is no error mentioned nor is the image changing.
Please help!

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Image Analyst
Image Analyst 2019-12-28
This should work
hLine = line(x, y, 'Color', 'r', 'LineWidth', 2);
% Now delete it.
delete(hLine);
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Walter Roberson
Walter Roberson 2019-12-29
Yes, recording the handle will always be a better solution rather than findobj when it can be done. Sometimes though you are wanting to delete a line from a plot created by code you do not have control of, or from a stored fig that you cannot change the generation code for, and in those cases you would use findobj or findall

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