problem with the previous data in matlab gui

I am working on matlab gui. how to delete previous data that is stored in the gui variable? like clear in command window, is there anything like that in gui

Answer 1

[Jan]

What is "the gui variable"? Do you mean the handles struct? Then:

handles.yourData = [];
guidata(hObject, handles);

Or

handles = rmfield(handles, 'yourData');
guidata(hObject, handles);

Or perhaps some persistent variables?

For a more precise answer, explain, how you store the variables.

[Franck paulin Ludovig pehn Mayo]

hello @Jan

I have a little problem. I was able to code a "Next button" using app designer that have as aim to draw lines. I had the data coming from excel. I am able to draw each line by clicking on the next button. The only problem is that the previous data/line is not deleted. So instead of having one line, i will have 2 or more depending on how many times i click on the next button.

any function hat could be helpful?

[Jan]

Please ask a new question by creating a new question. Then answering is easier than if the question is hidden in a comment of an answer of another question.

[Franck paulin Ludovig pehn Mayo]

@Jan i did 3 days ago but so far no answer.Below is the link of my question.

https://www.mathworks.com/matlabcentral/answers/questions/op_edit/1564616?edit_field=summary

Thank you i look forward to hearing from you soon.

[Jan]

@Franck paulin Ludovig pehn Mayo: This is a link to edit the new question. The working link:

https://www.mathworks.com/matlabcentral/answers/364321-problem-with-the-previous-data-in-matlab-gui#comment_1789096