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How to display the code is running?

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Benson Gou
Benson Gou on 19 Jan 2019
Answered: Image Analyst on 19 Jan 2019
Hi, All,
I have a code which takes several minutes to finish the execuation. I donot want to display the middle results on the screen, but I do want to show (to anyone who runs it) that the code is running on the screen. Could anyone tell me how to do that?
Thanks. Benson

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Accepted Answer

Image Analyst
Image Analyst on 19 Jan 2019
See these snippets:
% Change mouse pointer (cursor) to an hourglass.
% QUIRK: use 'watch' and you'll actually get an spinning blue circle (Windows 10) or an hourglass not a watch.
set(gcf,'Pointer','watch');
drawnow; % Cursor won't change right away unless you do this.
% Change mouse pointer (cursor) to an arrow.
set(gcf,'Pointer','arrow');
drawnow; % Cursor won't change right away unless you do this.

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More Answers (1)

Walter Roberson
Walter Roberson on 19 Jan 2019
If the code takes a known number of iterations, then you can use waitbar() to display a progress bar.
If the code does not take a known number of iterations, then you would not know what value to update waitbar with. It can be formally proven that there are tasks for which you cannot possibly figure out how many iterations you will need ahead of time, where you can only recognize that you achieved a goal without any possible clue as to how much work you will have to go through to get there.

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