Loop with Fixed time

How can I make the loop with fixed time?

For example:

for i=1:5

　somecode;

end

I want to make every calculation time of the loop is about 1 sec And the total calculation time is about 5 sec

Answer 1

[Azzi Abdelmalek]

for i=1:5
  %somecode;
  pause(1-tw)    % tw is your computing time
end

%to find your computing time use tic and toc

[Jen-Yu Hsiao]

TKS~!!

[Jan]

The Java sleep() timer is more accurate: see http://undocumentedmatlab.com/blog/pause-for-the-better/. A timer might be even more precise.