wait a variable amount of seconds in matlab

You can use the pause function with an input argument of the number of seconds you want to wait. Here's an example code that waits for a variable number of seconds specified by the wait_time variable:

main.m
wait_time = 5;  % time to wait in seconds
pause(wait_time);
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Alternatively, you can use the timer object to wait for a variable amount of time. Here's an example code:

main.m
wait_time = 5;  % time to wait in seconds
t = timer('TimerFcn', @(~,~)disp('done'), 'StartDelay', wait_time);
start(t);
wait(t);
delete(t);
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This code creates a timer object that fires an event after wait_time seconds. The wait function is used to block the program until the timer finishes, and then the timer object is deleted.