how to have a feedback to users when Matlab is computing in GUIDE

Hello, I am new to Matlab. There is no specific code I am talking about here. I load a big amount of data into Matlab and use GUIDE as user interface. Because the data is too heavy, it takes a long time to load in. Is there a way to show Matlab is computing on GUIDE?? (so users will know Matlab is computing now)

Answer 1

[Image Analyst]

It depends on how you're reading it in. If it's in a loop, then yes - you can put up some message on screen (be sure to use the drawnow command). If it's just one command, like an xlsread() that is taking a very very long time, then it would be more complicated.

[herb]

It's a xlsread() How can I show the image when computing starts and let the image disappear when computing done

[Image Analyst]

How long does it take to read in the xls file?

To show an image, you can use imshow().

imshow(yourImage, []);

To make it disappear, you can show just a gray pixel or something

imshow([.5,.5]); % Get rid of image and show just a dot.

[herb]

Thanks for your answer. BTW, I found out waitbar is also useful.