MATLAB: Can we stop at particular number of iteration

loop

I have a loop. The number of iteration is very big. Usually it produce error at iteration >500. can I run the loop and stop a few step before error? If I use debug, I need to run almost 500 iteration manually and it is tiring .
Best regard
Ali

Best Answer

Solution 1:
dbstop if error
Then Matlab stops, when an error occurs.
Solution 2:
for k = 1:5e5
  if k == 500
    disp('dummy line');   % <- set a breakpoint in this line
  end
  ... your code
end
Instead of a breakpoint, the "keyboard" command would be sufficient also.
Of course the debugger has more powerful options, but this simple methods work in other programming languages also and are easy to remember.
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