How to catch an error

Hi,

if I get an error I want change the algorithm: like this:

if ERROR
ALGORITHM 2
else
ALGORITHM 1
end

Hope someone can help.

Thank YOu!

Answer 1

[Image Analyst]

Try it like this:

try
  % No error yet, so try to run algorithm 1
  algorithm1();  
catch ME
  % You get here if algorithm 1 bombs.
  % Create an informative error message.
  errorMessage = sprintf('An error occurred in function blah_fubar().  The error reported by MATLAB is:\n\n%s\nClick OK to run algorithm2()', ME.message);
  % Print error message to command window.
  fprintf('%s', errorMessage);
  % Alert the user via a popup message.
  uiwait(warndlg((errorMessage));
  % Now run algorithm 2, because we had the error occur.
  algorithm2();
end

[John Miller]

Waoow nice ! :) This is perfect

THANK YOU VERY MUCH FOR YOUR HELP!!

Answer 2

[the cyclist]

You need the try-catch construct. Look up

>> doc try