exit Matlab session?

Is there a function in Matlab to exit the whole session run without exit Matlab? I mean an equivalent to "goto end" function.

[Preethi]

you want to close all the windows and clear data without closing matlab? or you want to exit from matlab?

[nilsotto]

For instance if I have a conditional if loop and I do not just want to leave the loop, I want to go to the end of the program (without closing down Matlab)

[Walter Roberson]

error() out, provided nothing happens to be using try/catch .

[Stephen23]

 return

Answer 1

[Walter Roberson]

In any one loop, you can use "break" to terminate the loop.

In any one function, you can "return" to continue with the calling function. This may cause problems if you have not defined the return values that the calling function is expecting.

You can use error() to quit back through multiple levels until eventually the code reaches a place that is using try/catch for error control. There is no "uncatchable error".

You just might be able to use Java Robot Class to send your MATLAB session a control-C; I am not sure that will work, but it might. control-C cannot be caught, but it can also leave the program in a strange state.

You can exit out of MATLAB completely with "exit" or "quit" (which are equivalent.)

Answer 2

[Jan]

You can enclose you code in try catch block and use the MException identifier to recognize a regular abortion:

function Main
try
   yourFunction;
catch ME
   if strcmpi(ME.identifier, 'FlowControl:regularExit')
      disp('Regular exit.')
   else
      rethrow(ME);  % Or: throwAsCaller(ME)
   end
end
end

function yourFunction
if rand > 0.5
   ME = MException('FlowControl:regularExit', ...
      '%s: Aborted due to random reason', mfilename);
   throw(ME);  % Goodbye
end

disp('Function not aborted.')
end

You see, this is not trivial or nice. But it allows a proper cleanup and error handling.