How to open several GUIs one at a time in a matlab script?

I have 4 GUI tasks, Task A, Task B, Task C, and Task D, and would like users to complete 4 tasks one by one. If I write in the script:

Task A;

Task B;

Task C;

Task D;

then all 4 GUI tasks pop out at the same time.

How can I let Task B only pop out after the user closes Task A or is done with Task A? There are 10 problems in each task and I coded tasks to be autoamically closed after users finish 10 problems.

I want to randomize the order of 4 tasks for each participant, which means Task A could be followed by any task, therefore, I can't hard code Task A to automatically trigger Task B.

Thanks so much!

[Hari Krishna Ravuri]

I undrstand that, you are trying to randomize Tasks A,B,C,D among the participants.You may consider writing a small script which generates a vector having 4 elements{1,2,3,4}, randomizing the order of elements.Now, you may execute the tasks according to the generated vector.

[Adam]

Or create a vector of function handles to each of your GUIs, e.g.

guis = { @TaskA, @TaskB, @TaskC, @TaskD,... };

Then you can use e.g.

doc randperm

to get a random permutation of indices into that vector and launch the relevant GUI as

guis{ idx }( )

As for the problem of all UIs opening at once, Rik's answer should sort that out.

[Adam Danz]

To add to these other great solutions, you could also toggle the visibility of your GUI figures on/off as needed. That way when you're ready to move on to the next GUI, it's already generated and you just need to make it visible.

Answer 1

[Rik]

As long as your GUI functions return a handle to the figure, you can use the uiwait function to get the behavior you want.

[Shuyuan Yu]

Thanks so much for your help!