MATLAB: For statement – print on exactly 1 second

for loop

Hi!
I want to print some text (ex. test) 20 times, every 1 second. I tried with for statement:
close all;
clear all;
tic
for i=1:20
  toc
  disp('test');
  pause(i-toc);
end
If I run this code, I see that time drifts also for 20 ms from whole second (I know that It depends on many things, occupancy of CPU is for ex. one thing). Is any other option to come closer to the whole second?
Thank you! Best regards, Dejan

Best Answer

java.lang.Thread.sleep(t*1000) than is more accurate than pause(t)
tic;
for i=1:20
  toc
  disp('test');
  java.lang.Thread.sleep((i-toc)*1000);
end
["test" removed for compactness]
Elapsed time is 0.008428 seconds.
Elapsed time is 1.000497 seconds.
Elapsed time is 1.999536 seconds.
Elapsed time is 2.999586 seconds.
Elapsed time is 4.000012 seconds.
Elapsed time is 4.999816 seconds.
Elapsed time is 5.999633 seconds.
Elapsed time is 6.999679 seconds.
Elapsed time is 7.999731 seconds.
Elapsed time is 8.999758 seconds.
Elapsed time is 9.999807 seconds.
Elapsed time is 10.999854 seconds.
Elapsed time is 11.999904 seconds.
Elapsed time is 12.999952 seconds.
Elapsed time is 13.998999 seconds.
Elapsed time is 14.999047 seconds.
Elapsed time is 15.999100 seconds.
Elapsed time is 16.999148 seconds.
Elapsed time is 17.999193 seconds.
Elapsed time is 18.999260 seconds.
See http://undocumentedmatlab.com/blog/pause-for-the-better . But my measurements with pause look fairly accurate also.
Use a timer for triggering code after certain times.
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